No. overall No. in season Title Directed by Written by Original air date U.S. viewers (millions) 88 "Yes, Then Zero '' Mark Piznarski Joshua Safran September 26, 2011 (2011 - 09 - 26) 1.37 While working as a production assistant in Hollywood, Serena makes a mistake while trying to impress her new boss (Michael Michele). Chuck and Nate arrive in Los Angeles to visit Serena where Nate gets involved with a shady older woman (Elizabeth Hurley) and Chuck has a meeting of minds with actress / stuntwoman Zoë Bell (playing herself) as he struggles to get over Blair. Meanwhile, Blair and Louis return to New York from Monaco after spending the summer planning their wedding. Louis ' problem in supporting Blair 's difficult choices and nearly impossible demands threatens their relationship when she begins to see him as weak. Also, Dan gets help from Louis in a desperate attempt to prevent his book from being published in a local magazine. It is revealed in this episode that Dorota is pregnant and expecting her second child. Towards the end of the episode, it is also hinted that Blair is the one that is pregnant in which Dorota lied for her. As she is fitted for her wedding dress, the dress fitter says that by the time of her wedding she will be showing. Also, Serena runs into Charlie in Los Angeles still unaware of her real identity: Ivy Dickens, who has moved to California with her boyfriend, Max. Title reference: The 1987 film Less Than Zero. 89 "Beauty and the Feast '' Mark Piznarski Sara Goodman October 3, 2011 (2011 - 10 - 03) 1.34 Blair tries to conceal the news of her recent pregnancy from Louis as the arrival of her future sister - in - law Beatrice (Roxane Mesquida) nears. Nate reconnects with the mysterious Diana Payne (Elizabeth Hurley), a woman whom he had a fling with in Los Angeles who offers him a job opportunity to work at her publishing company, called Spectator, in New York. Meanwhile, Dan is desperately in need of help from Chuck to stop his novel from being published, but finds out that Chuck is hiding a secret. Ivy, still in character as Charlie, tries to avoid her real identity from an unsuspecting Serena but her plans affects her life in L.A. with her unsuspecting boyfriend Max. Blair 's plan does n't go accordingly; since Beatrice overhears her tell Dan that she 's pregnant, not bulimic. Title reference: The 1991 film Beauty and the Beast. 90 "The Jewel of Denial '' Larry Shaw Amanda Lasher October 10, 2011 (2011 - 10 - 10) 1.27 Serena and Charlie return to New York. Worrying that her identity will be revealed, Ivy decides to start making her own choice by being a part of New York 's social society as Charlie. Meanwhile, Dan learns that his former mentor, Noah Shapiro, is responsible for publishing his novel. After his attempts at stopping Noah fail, Dan soon ends up in the spotlight. Chuck tries to break through his emotional block. Unknowingly, Nate is persuaded by the ruthless maneater Diana to cross moral lines while interviewing a couple at the Jenny Packham fashion show. Lily is finally released from house arrest and attends the fashion show with Rufus, despite the fact that her social life is in shambles. After learning that Ivy stole some of Charlie 's trust fund money for herself, Carol Rhodes tracks down Ivy to New York where Ivy threatens to reveal their scam, as well as implicate Serena and the entire Van Der Woodsen family, if Carol does not back away. Elsewhere, a very reluctant Blair decides she does not want to learn who the father of her unborn child is, but is later seen telling Chuck that she is pregnant with Louis ' baby, but adds "Part of me wished it was yours ''. He is both amazed and hurt. When Blair tells Louis that she is pregnant, he is ecstatic, but at the end Blair is seen hiding the test results in a drawer. Also, Nate finds Ivy 's missing cell phone with her text messages from her boyfriend Max, but does not make the connection that Ivy and Charlie are one and the same. Title reference: The 1985 film The Jewel of the Nile. 91 "Memoirs of an Invisible Dan '' Tate Donovan Amy B. Harris October 17, 2011 (2011 - 10 - 17) 1.16 Dan is about to be announced as author of Inside so he gives a copy of the book to Blair, Serena, Nate, Chuck and Rufus hoping they will be supportive at his upcoming book party. In the book, Dan described Serena as the "old Serena '': drinking, dating teachers, being shallow, partying, reckless, and having random sex. Nate does n't receive a character description, but is joined with Eric (a younger, gay character with political relatives). Chuck is described as being lonely, cynical and without any friends or family. The book talks about Blair and Dan having sex, and when Louis reads it he says he ca n't trust Blair anymore. Blair is afraid she will have to raise the baby on her own if he leaves and finally tells Serena. Louis apologizes for his behavior and agrees to trust Blair. Even Rufus becomes angry and alienated with Dan when he says he had never regretted leaving the music industry to have a family, until upon reading the book, which portrays him as marrying Lily just for money. Meanwhile, Diana makes the connection of Ivy and Charlie being the same person and forces Charlie to work for her at Spectator. Also, Serena 's boss tells her to get the film rights for Inside and that she has only one week, forcing Serena to choose between Dan and her career. Title reference: The 1992 film Memoirs of an Invisible Man. 92 5 "The Fasting and the Furious '' Joe Lazarov Peter Elkoff October 24, 2011 (2011 - 10 - 24) 1.36 Louis ' mother Princess Sophie and his sister Beatrice pay another visit to New York where Blair announces her pregnancy to everyone. While her stepfather and mother, Cyrus and Eleanore, decide to throw a Yom Kippur dinner party to celebrate, Sophie and Beatrice try to get Blair to accept a series of conditions following the marriage. Blair naturally refuses, and Louis must choose between standing beside Blair or his mother. Meanwhile, Serena tries to get back into Dan 's good graces after her boss tells her to ask Dan to gain the movie rights to his book. Charlie asks Nate for help after Diana gives her a difficult assignment to find more dirt on the Van der Woodsen family kept in the family safe. As Rufus and Lily continue to avoid talking with Dan over his book, Chuck connects with an attractive therapist who rebuffs his advances and seems to see right through his character for who he really is. Title reference: The 2001 film The Fast and the Furious. 93 6 "I Am Number Nine '' Andy Wolk Jake Coburn November 7, 2011 (2011 - 11 - 07) 1.26 Blair tries out three of her former minions for her Bridesmaids slots, and Charlie willingly teams up with the group in order to seek out a story where she proves herself to be more than a match for the Mean Girls. Nate becomes more frustrated that Diana refuses to publicly speak about their romance. So, Nate tries to make Diana jealous by asking Charlie to accompany him to Diana 's party celebrating the opening of her new gossip Internet blog at Spectator. Meanwhile, Serena is forced by her boss, Jane, to secure the screenwriting rights for Dan 's book, who quickly realizes that Jane wants someone else to write the screenplay in order to make the movie even more sordid and absurd as well as marketable. Also, Chuck discovers that his therapist, Dr. Eliza Barnes, has been recruited by Louis in order to dissuade Chuck from pursuing Blair any further. Title reference: The 2011 film I Am Number Four. 94 7 "The Big Sleep No More '' Vince Misiano Dan Steele November 14, 2011 (2011 - 11 - 14) 1.24 Several of the group attend a performance of Punchdrunk 's provocative theater experience, "Sleep No More '', which translates to masks, anonymity and some surprising romantic twists by the end of the evening. Dorota follows Blair to the performance to stop her from trying to prove that Chuck 's attempts to reform himself into a better man is a scam. Meanwhile, Diana sets her sights to snag Serena a job at Spectator as part of her twisted quest to ruin Gossip Girl 's website. Charlie / Ivy 's ex-boyfriend, Max, arrives in town for an interview look for her, and ends up as Serena 's date to the performance. Diana sets about manipulating Max, Serena, Charlie, and Nate, hoping to cause a major confrontation for her own deranged enjoyment. Elsewhere, Dan sets out on his book tour, but Rufus and Lily discover that he is n't exactly having the experience as he claims to be. At the end, more shocking twists are revealed as the evil Diana and Nate 's crooked grandfather, William van der Bilt, are revealed to have been working together to orchestrate Nate 's employment with Diana as part of sinister grand plan for Nate, while Max, sent away by Diana on a ruse, accidentally discovers Ivy 's double life of impersonating Serena 's cousin Charlie. Title reference: The 1946 film The Big Sleep and the 2011 theatrical production Sleep No More. 95 8 "All the Pretty Sources '' Cherie Nowlan Austin Winsberg November 21, 2011 (2011 - 11 - 21) 1.35 Serena is hard at work planning a dream bridal shower for Blair, but it should come as no surprise that Serena has to plant some false information about the shower in order to keep Blair from finding out all the details. Meanwhile, Chuck and Dan decide to spend the day together to distract themselves from the fact that they did n't make the invite list for Blair 's shower. Nate and Serena find a silver bullet in Diana 's war against Gossip Girl when they uncover a list of all of Gossip Girl 's contacts, but struggle about whether to use it or not. But when the list is leaked anyway, Nate and Serena accuse each other, then Nate accuses Diana, but Blair finds out that the culprit is Louis. Elsewhere, Max confronts Ivy about her double life of impersonating Charlie who tells him that Charlie is her real identity. But Max quickly sees through Ivy 's lies and instead of informing Lily or Serena or the authorities with what he knows, he instead blackmails Ivy for a large sum of money. Also, William van der Bilt makes his presence known where he forces Diana to quit as editor - in - chief of Spectator so that Nate can take her place. Chuck tells Dan that he is in love with Blair. The episode ends with Blair visiting Chuck at the Empire after she learns from Serena that Chuck really has changed. Title reference: The 2000 film All the Pretty Horses. 96 9 "Rhodes to Perdition '' Andrew McCarthy Natalie Krinsky November 28, 2011 (2011 - 11 - 28) 1.32 CeCe Rhodes arrives back in New York where Lily and Serena are planning to throw her a Studio 54 party in her honor. Serena continues dating Max who begins blackmailing Charlie. Meanwhile, Dan meets with his publicist Alessandra where they create rival "Dan fan '' and "Dan hater '' accounts on Twitter in order to create online buzz for his book. Blair attempts to figure out how to make Louis more like the "new '' Chuck by spending the day with Chuck. She accompanies him to therapy and demands to know how he 's improved himself only to find out that he 's let her go. Upset she runs home and later reveals to Chuck that she 's afraid she is the one that brings the dark side out in him and Louis. Chuck assures her that she is "the lightest thing that ever came into my life '' and tells her he let her go because she asked him to. He just wants her to be happy. Also, Nate is the new boss of the Spectator and one of his employees finds out that his cousin Tripp 's wife, Maureen, might be having an affair. He soon figures out, however, that Maureen is faking an affair in order to create a sympathetic image for Tripp in the public eye before the upcoming election. Serena learns about Ivy and Max and breaks up with him and Carol Rhodes visits to help find a cover story to get "Charlie '' her trust fund and to help keep her there where she 's loved. In the final confrontation, everyone believes Ivy 's false story that she really is Charlie and pretended to be Ivy when she was with Max, even though he calls her a liar and says otherwise. Ivy also finds out that CeCe is sick, but keeps it a secret. The episode ends with Max reaffirming his threats to Ivy to expose her scam, Chuck telling Nate that he still loves Blair, and Blair looking despondent in her bedroom, refusing to talking to Louis who is out of the country. Title reference: The 2002 film Road to Perdition. 97 10 "Riding in Town Cars with Boys '' Vince Misiano Amanda Lasher December 5, 2011 (2011 - 12 - 05) 1.28 Serena and Lily prepare Charlie for her first debutante ball to welcome her into New York high society, but the vindictive Max is determined to reveal Charlie / Ivy 's secret by any means necessary. Meanwhile, Blair must choose where she stands with both Louis and Chuck as she hides out at the Humphrey loft in Brooklyn from the press. Dan realizes that it is time to tell Blair the truth about his feelings for her. Louis returns to New York where he meets with Serena and confides in her about his fears about his future with Blair. Nate learns that his grandfather, William van der Bilt, owns the majority of stock shares at Spectator and he influenced Diana to hire him. William invites Nate to an upstate retreat, but Nate 's cousin, Tripp, has been excluded. After Dan sacrifices his own love for Blair for her happiness, Chuck and Blair are hurried into a car from Charlie 's debutante ball. Their car is tailed by vicious paparazzi (Charlie sent a blast to Gossip Girl and tipped them off in order to keep them away from her) who cause them to crash, leaving Chuck fighting for his life and the pregnant Blair fighting to keep her baby. After Max 's pleas to both Serena and Nate about Charlie 's real identity fall on deaf ears, he has a run - in with Tripp van der Bilt whom he apparently tells his story about Ivy. Charlie calls Carol Rhodes to tell her that she is leaving New York City after she tells Rufus that she is a fraud. Also, Diana is called by Jack Bass and informed about Chuck and Blair 's car accident; she is somehow involved. Title reference: The 2001 film Riding in Cars with Boys. 98 11 "The End of the Affair? '' Michael Grossman Sara Goodman January 16, 2012 (2012 - 01 - 16) 1.29 Through a series of emotional flashbacks, Blair reveals to Serena what really happened in the aftermath of her car crash with Chuck. Dan tries to help Blair recover, while both Chuck and Louis mistaken their bonding as an affair. Meanwhile, Nate discovers information about the accident that suggests possible foul play. Having successfully shut down Gossip Girl 's website, Serena is reluctant to become the next Gossip Girl as her work at Spectator News takes off. Elsewhere, Lily is worried by Charlie 's long absence and decides to hire a private detective to track her down despite Rufus ' objections. Vera Wang makes a cameo as herself at Blair 's dress fitting. Title reference: The 1999 film The End of the Affair. 99 12 "Father and the Bride '' Amy Heckerling Peter Elkoff January 23, 2012 (2012 - 01 - 23) 1.11 Blair decides to throw herself a bachelorette party, but shady enemies who include Beatrice (Roxane Mesquida), and her co-conspirator cousin Father Cavette, scheme to ruin and humiliate Blair, with an unknowing Chuck as their patsy, in order to prevent Blair 's upcoming marriage by any means necessary. Meanwhile, Nate, with the distant assistance of Gossip Girl, finally discovers that Tripp was responsible for the car accident that affected Blair and Chuck and he contacts William van der Bilt for help to expose Tripp 's scheme. Also, Serena and Dan continue their fake relationship to protect Blair while Dan becomes uncertain about writing again. Title reference: The 1991 film Father of the Bride. 100 13 "G.G. '' Mark Piznarski Joshua Safran January 30, 2012 (2012 - 01 - 30) 1.39 In the 100th episode, Blair 's wedding day finally arrives, along with a vengeful Georgina Sparks and her co-conspirator husband who are determined to ruin Blair 's wedding by any means necessary. Meanwhile, Serena decides that she has to tell Dan how she feels while Nate unknowingly meets the real Charlie Rhodes working as a waitress at the reception. Elsewhere, Chuck must decide whether or not to make a final grand gesture to show Blair how he feels until Blair 's mother, Eleanor, approaches him to persuade him to stop the wedding. Blair 's estranged father Harold, and her stepfather, Cyrus, try to get Blair to choose one of them to escort her down the aisle, while Louis ' mother, Sophia, again tries to tell him that Blair is not, and never will be, trustworthy. During the wedding, Gossip Girl leaks a video which shows Blair confessing her love for Chuck. However, an interrupted wedding continues and Blair is officially declared the Princess of Monaco. However, at the reception, Louis reveals to Blair that the wedding stands as contracted and "a show '', and their love does not exist, to which Blair reacts in distress and runs away with Dan. The identity of Gossip Girl 's successor is revealed at the end of the episode. Title reference: The 1958 film Gigi. 101 14 "The Backup Dan '' David Warren Matt Whitney February 6, 2012 (2012 - 02 - 06) 1.25 Following the wedding, Blair tries to leave for the Dominican Republic, with the help of Dan, to get a divorce from Louis without his consent due to a loophole in the Dominican Republic 's law. However, she realizes that she forgot her passport and so asks Dorota for help. Serena, Chuck, Nate reluctantly team up with Georgina to find Blair, until Georgina gets a tip from one of her sources and she leaves. Georgina then, as Gossip Girl, informs Louis and Sophia of Blair 's location. Nate, Serena and Chuck eventually find Blair in a hotel room with Dan. Sophia finds Blair and threatens to forcefully sell Eleanor 's company as dowry if Blair chooses not to return, on which Blair reluctantly decides to go back. Elsewhere, Nate has another meeting with the real Charlie Rhodes, who goes by the name of Lola. At the end, it is implied that neither Chuck nor Serena, who takes the blame, leaked the video of Blair confessing her love for Chuck. It is revealed that Georgina is simply filling in for Gossip Girl ever since she abandoned the blog after Chuck and Blair 's car accident. Title reference: The 2010 film The Back - up Plan. 102 15 "Crazy, Cupid, Love '' Matt Penn Austin Winsberg February 13, 2012 (2012 - 02 - 13) 1.13 It 's Valentine 's Day on the Upper East Side and Blair ca n't resist playing Cupid for someone she loves as she tries to get Serena and Dan back together. Georgina is intent on stirring up more drama and trouble since taking over Gossip Girl 's website. With the help of a group of informants, Georgina decides to crash Nate 's Valentine 's Day party which is being held at the Empire Hotel, while Chuck does not feel in the holiday spirit and falls into his old habits. Meanwhile, Ivy Dickens returns to New York for a quick visit, but has a run - in with the real Charlie Rhodes, working at the party, whom Nate is still pining after. Serena is shocked by something she witnesses at the party when Dan and Blair 's relationship takes a turn when Dan kisses Blair and she kisses him back. Georgina figures out that Dan was the one who leaked the video of Blair confessing her love for Chuck at her wedding, but keeps silent when Dan discovers her own secret of being Gossip Girl. Charlie discovers Ivy, whom she used to know from acting school, has been impersonating her and also remains quiet as she sets out to investigate her. Ivy is also revealed to have spent the last three months hiding out in the Hamptons where she keeps a bedside vigil at a local hospice for a terminally sick CeCe Rhodes. Title reference: The 2011 film Crazy, Stupid, Love. 103 16 "Cross Rhodes '' John Terlesky Amy B. Harris February 20, 2012 (2012 - 02 - 20) 1.00 Dan feels honored when he learns that Upright Citizen 's Brigade theater troupe is performing excerpts from his book, Inside. Meanwhile, Blair tries to prove Serena 's suspicions about her feelings for Dan are wrong, in order to save their relationship. A jealous and vindictive Chuck maliciously plots to sabotage Dan 's writing career. On her way out of town, Ivy Dickens ends up on a collision course with the Van der Woodsens and destiny as she continues to look after the cancer - stricken CeCe. Charlie / Lola continues to investigate Ivy 's origins as well as keep what she is doing a secret from Nate and everyone else. Carol Rhodes also arrives back in New York after learning from Lily and Serena about Cece 's medical turn for the worse. It is here at the hospital, that Ivy and Charlie run into each other once again, where this time Charlie finally reveals in front of the whole Van der Woodsen family that Ivy (whom they still know as Charlie) is an impostor. Carol, unable to lie any more, tells the truth about Ivy and all about their scheme. Blair admits to her feelings for Dan. At the end of the episode CeCe dies. Title reference: The 1986 film Crossroads. 104 17 "The Princess Dowry '' Andrew McCarthy Jake Coburn February 27, 2012 (2012 - 02 - 27) 1.11 Blair thinks her stepfather may have found a potential loophole in her prenuptial agreement that would allow her to escape her marriage to Louis. CeCe Rhodes, before her death, arranged for a secret Irish - themed wake to take place at Van der Woodsen penthouse. Georgina Sparks decides to leave her post at Gossip Girl to her loyal but incompetent husband, Phil, and crash the wake to stir up more trouble. Chuck learns that Dan was the one who sent the video of him and Blair at her wedding ceremony and sends a blast to Gossip Girl. However, Phil inadvertently leaves Chuck 's name in the blast. William Van der Woodsen (William Baldwin) returns to the Upper East Side for the wake, and is the executor of CeCe 's estate. Ivy Dickens is announced as CeCe 's heir and we learn that CeCe was apparently aware the whole time of Ivy 's real identity. Ivy evicts both Lily and Rufus from the Van der Woodsen penthouse. Carol Rhodes also reveals the identity of Charlie 's father as William Van der Woodsen. The real Charlie ' Lola ' Rhodes continues her affair with Nate but has little interest in getting to know her family until Georgina suggests to her there may be another reason why her mother hid her from them. We learn that Blair 's personal accountant, Estée, is in love with Louis, and she convinces Blair to agree to having her marriage annulled as long as she does n't say a word to the media, including Gossip Girl. However this is all a ruse perpetrated by Georgina herself, who sends a photo of Blair and Dan kissing to Gossip Girl and the Waldorf 's are once again threatened with responsibility of paying the dowry and declaring bankruptcy. Blair tells Chuck that she will always love him but is not in love with him anymore. Georgina no longer wants to act as Gossip Girl after revealing to everyone that she has been filling in for the real Gossip Girl. She sends her computer to Serena and leaves for Monaco to help annul Blair 's marriage... in exchange for a favor down the road. Blair tells Dan that he 's the one who has her heart and they begin a relationship. Title reference: The 2001 film The Princess Diaries. 105 18 "Con Heir '' Joe Lazarov Annemarie Navar - Gill April 2, 2012 (2012 - 04 - 02) 0.97 Chuck invites his uncle, Jack, back to New York to thank him for saving his life in the car accident by donating blood, but starts to doubt Jack 's story when Chuck investigates and learns that Jack was recently diagnosed positive with Hepatitis C, and a test on Chuck turns to be negative. Meanwhile, Blair and Dan attempt to consummate their new relationship, but unexpected roadblocks get in their way. Serena takes over the role of Gossip Girl after receiving Georgina 's package, but learns that the job is trickier than she thought. Elsewhere, Ivy believes she has found an ally in William in her quest to be accepted into high society on the Upper East Side. Lily tries to adjust to living in Brooklyn at the Humphrey loft with Rufus until the war against Ivy is settled. Lola decides to help her family, seeing as they are all she has left. Also, Nate is hopeful that a new investor will save his newspaper Spectator. The episode concludes with the real Gossip Girl ready to resume her post, and requesting that Serena give the site back. Chuck discovers that it is his mother who donated the blood. Title reference: The 1997 film Con Air. 106 19 "It Girl, Interrupted '' Omar Madha Amanda Lasher April 9, 2012 (2012 - 04 - 09) 0.98 Serena is determined to turn Lola into the next "it - girl '' of the Upper East Side, starting with trying to persuade Lola to model at a Kiki de Montparnasse lingerie show. Meanwhile, Chuck reaches out to Blair for advice about his past but is rejected as she believes he has a hidden agenda. Diana Payne 's return to The Spectator starts a power struggle with Nate for control, while Lola reacts with jealousy; but everything is not what it appears. It is discovered that Chuck paid Blair 's dowry to get rid of Louis ' family. Also, Rufus and Lily have a falling out after Lily goes behind Rufus ' back to play a simple scheme to remove Ivy from their penthouse. Title reference: The 1999 film Girl, Interrupted. 107 20 "Salon of the Dead '' Norman Buckley Natalie Krinsky April 16, 2012 (2012 - 04 - 16) 1.06 Blair and Dan throw a salon as a way of coming out as a couple, but drama caused by their friends derail the night. Lola finds out Serena is posing as Gossip Girl but does n't tell Nate, knowing he would be hurt by the revelation. Lily cuts off Rufus ' debit card after she finds out he has been paying for a hotel for Ivy. It is revealed at the end that Diana is really Chuck 's mother, she was too young to raise a baby and gave him to Elizabeth to look after. Title reference: The 2004 film Shaun of the Dead. 108 21 "Despicable B '' David Warren Austin Winsberg April 23, 2012 (2012 - 04 - 23) 0.99 Blair feels like her Upper East Side status might be slipping away and devises a plan to assure that does n't happen by upstaging Dan at a publishers gathering. Meanwhile, Lily throws a family gathering including William, Carol, and Lola in an attempt to prove the van der Woodsen family is as united as ever, but Lily has an ulterior motive. Finally, Nate digs into Diana 's past and is surprised by what he discovers. Title reference: The 2010 film Despicable Me. 109 22 "Raiders of the Lost Art '' Bart Wenrich Jake Coburn April 30, 2012 (2012 - 04 - 30) 1.02 Chuck, Nate, Blair, Serena and Lola team up to uncover what they think is an explosive secret between Diana and Jack. Meanwhile, Dan is offered a prestigious fellowship in Rome for the summer, but turns it down for his relationship with Blair. Dan tells Blair he loves her but she does n't say it back. Nate and Lola team up with Gossip Girl to take back the site from Serena leaving her hopeless. Diana is seen to be running a high class brothel service. At the end of the episode Chuck finds out his father Bart Bass is still alive. Title reference: The 1981 film Raiders of the Lost Ark. 110 23 "The Fugitives '' Andy Wolk Matt Whitney May 7, 2012 (2012 - 05 - 07) 0.83 Blair enlists Serena to be her stand - in at an important meeting when Blair finds herself needing to be in two places at the same time as Dan seeks to meet with a college rep from Italy for his oversees summer stay in Italy. Meanwhile, Ivy and Lola team up to help Chuck with a personal vendetta against an old enemy of Bart Bass '. Also, Nate makes a decision about the future with Diana. Title reference: The 1993 film The Fugitive. 111 24 "The Return of the Ring '' J. Miller Tobin Sara Goodman May 14, 2012 (2012 - 05 - 14) 1.14 In the fifth season finale, when Gossip Girl begins to upload excerpts from Blair 's diary, her love life begins to unravel causing her to choose between Dan and Chuck. Serena is banished from the Waldorf apartment for her part in the reveal of Blair 's diary, she then retaliates by trying to seduce Dan with the help of Blair 's minions. Nate asks Lola to move in with him, but she turns him down when she tells him that her acting group is going on tour. Meanwhile at the Shephard divorce party, Serena and Dan have sex, but when Dan learns she videotaped their encounter just to hurt Blair, he furiously leaves. Elsewhere, Lily chooses to annul her marriage to Rufus, since her marriage to Bart is still valid. Lola receives her share of the Van der Woodsen estate from her biological father, William Van der Woodsen, and also learns that Lily intentionally sabotaged Carol 's defense in court to keep her imprisoned as well as destroyed Ivy 's case in order to keep Cece 's wealth all for herself. Blair accepts an offer from Eleanor to take over her fashion company. Following a Bass Industries press conference, Blair chooses Chuck over Dan, but Chuck rebuffs her when he is preoccupied with his father 's return as head of Bass Industries who ousts Chuck to reclaim his former position as CEO. One week later; Lola hands over her inheritance share to Ivy, who in return promises to keep in touch and help her bring down their common enemy: Lily. Lola leaves town to go on tour with her acting troupe, while Ivy returns to Florida to plot her revenge against Lily. The disgraced Serena leaves town and reverts back to her old self by taking drugs and sleeping with her dealer, whilst the alienated Dan leaves for Rome and prepares to write another hurtful, tell - all book about the Upper East Side with the help of Georgina Sparks. Nate receives CCTV footage from Diana Payne of the real Gossip Girl (a hooded masked figure) stealing Serena 's laptop on the night of Bart 's return. Whilst in Paris, Blair goes to a casino where Chuck and Jack are scheming to bring down Bart Bass and tells Chuck it 's now her turn to fight for him. Title reference: The 2003 film The Lord of the Rings: The Return of the King.
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