Lara Jean writes letters to her crushes as a way to get her feelings out and to move on. They are sort of like a diary in a way and were never meant to be read. She has written to five boys and saved them all in a hat box. There are really only two major guys, Josh and Peter. When Peter approaches her at school one day about all the things she wrote, she is shocked. And worried. If Peter got his letter then Josh probably did. And Josh is her older sister Margot's ex-boyfriend and one of her best friends. To try to take attention off of her she tells Josh to forget the letter because she is dating Peter now. Peter agrees to have a fake relationship to make his ex jealous and to help out Lara Jean. 
 Peter is the extremely handsome and arrogant guy that everyone has a crush on. He was Lara Jean's first kiss but she is way over him now. But as they pretend to be a couple I began to fall for him and I just knew Lara Jean couldn't resist him for long. I also loved the way he was so sweet to her younger sister Kitty. I usually don't like younger siblings in books but Kitty was very mature and I enjoyed her character and her interactions with Peter. Peter's character really surprised me. I wasn't sure at all where he would lead me but I just loved where he took me. I was just constantly smiling though all his scenes. He made me laugh and swoon even though he could be arrogant at times. 
 I felt like Lara Jean's feelings were so spot on with the way I have felt before. In her letter to Peter her feelings are very much like the way I felt about some guys when I was young. The way it just feels so huge and so hard to get over. I was a bit disappointed that we didn't get to hear all 5 letters. The others were not that important but I still wanted to hear them. The big ones were to Peter and Josh and I loved the letter to Peter but we never heard the one to Josh. Josh was the best friend and I understood Lara Jean's feelings but she should have said something before Margot got with him. Margot has been such a great big sister and the mother of the family and Lara Jean felt she had to give him up for Margot to be happy and I did think that was very noble. Once a guy is with your sister or one of your friends there is just no going back though. Lara Jean can never be with Josh although after reading the letter Josh is wondering if he made a mistake. 
 I read this in two sittings and just loved it! Tears and laughs and swoon. I just loved all the relationships and the family dynamic. I've never had a sister and sometimes I am happy since I would never want some of these issues to arise. I think Josh needs to stay friends and not get with Lara Jean or get back with Margot. I think things are just too messed up now but I hope he stays friends with them. I really liked the way he got along with her family. But I just liked Peter even more! LOL They hit quite a few bumps but I found their relationship so fun and sweet. I was a bit disappointed with the rather open ending until I found out this is a duaology and there will be a sequel! I am so excited for the next book now and for the author signing I am attending next Tuesday! 
 "Good," Peter says. "Don't go falling for me again, okay? I can't have any more girls in love with me. It's exhausting." 
 I laugh out loud. "You're so full of yourself." 
 Peter Kavinsky just kissed me. He kissed me, and I liked it. I'm pretty sure I liked it. I'm pretty sure I like him. 
 "If you make Josh's dumb white-chocolate cranberry cookies and not my fruitcake ones, it's over." I laugh out loud. And then, the one I read over and over: "You look pretty today. I like you in blue."