1 star: Unpopular opinion (be warned) 
 I almost DNF'd it at 35%, then 40%, then 50%, then finally, because I was determined to finish the book, I skimmed the rest. The first half of the book was plain boring. I felt the devastation of loss from the characters, but that was really it. I didn't get how Liz--let alone anyone--wasn't put off by Tristan's demeanor when she first met him. He had been nothing but an a**hole to her. That's not very smart (or healthy). I don't buy it. Then I got annoyed and couldn't stomach it to read about how they used each other to remember their late spouses. 
 Then it got really weird. (view spoiler)[What were the chances that Liz's late husband was the driver whose car caused the accident that killed Tristan's family? (And by the way, that wasn't really a twist, just a plot gimmick. It was basically spelled out from the beginning.) And wouldn't they both have known that already? I'm sure they'd want to know exactly what happened. Even if this info wasn't public record, certainly there was a traffic investigation where the police would have to disclose the information! Or the insurance company would have to disclose it for loss of life and property, especially from an accident that resulted in 3 casualties! Sure, I'll bite. 
 Then, just COINCIDENTALLY, Liz was there to hold Tristan's late wife's hand right before she died, after immediately learning that she lost her husband in the other hospital room! Mmmkay. 
 What about this? Tanner, whom Liz had known for like 10 years or so and was affectionately called "Uncle T" by Emma, who turned out to be a stalker/psychopath AND was the one who tried to get Stephen and Emma killed by messing with the car brakes that caused accident, THEN later kidnapped Emma and tried to shoot Liz?! Where are the aliens at this point? Maybe in the twilight zone where random white feathers fell from. I DO NOT BELIEVE FOR ONE SECOND that psycho Tanner did not exhibit any stalker or violent tendencies in the past 10 years! Nope, not buying. 
 Here's another mind-boggling puzzle -- where was Emma each time Liz snuck into Tristan's room? I thought she only stayed with her grandparents on Fridays nights...? (hide spoiler)] 
 As if that wasn't enough, the cheesy dialogue had me rolling my eyes: 
 "I want to know where you go when you get lost in your mind. I want to know what makes you shout in your dreams. I want to see the darkness in you that you fight daily to keep hidden." 
 "Show me the shadows that keep you up at night. Kiss me with your darkness." 
 "Show me the part of you that you try to keep buried. Show me where it hurts the most. I want to see your soul." 
 "You know that place in between nightmares and dreams? The place where tomorrows never come and yesterdays don't hurt anymore? The place where your heart beats in sync with mine? The place where time doesn't exist, and it's easy to breathe? I want to live there with you." 
 (Um, where is this place, exactly? purple prose=#notwinning) 
 I mean, who talks like that? 
 Cheesy and incredulous, this book lacks both appeal and continuity, and you can poke holes in this plotline faster than you can say "I want to see your soul."