Rating: 4/5 
 ***Minor spoilers, TW: DOMESTIC ABUSE*** 
 Lily's father was not a good man. Throughout her life, she's seen him abuse her mother and apologize for it countless times. So when he dies of cancer, it's a bit of a relief, which is awful to say but true nonetheless. Lily just attended his funeral where she delivered a eulogy and refused to say a single good thing about him, and ended up on the roof of an apartment complex so she could sit and contemplate everything. While she's up there, she meets a man named Ryle, and it appears that both of them just need someone to talk to. A complete stranger to spill their secrets to. They end up being extremely honest with each other, and then Ryle gets called into perform surgery and they part ways. The thought of the other person sticks with them, but they never expected to reunite only months later by coincidence. 
 This was an extremely powerful book. While it was one of my favourite Colleen Hoover books so far, it was also the hardest to read. It wasn't bad, only emotional. It's so hard to read about a situation like Lily's without getting worked up over it, especially seeing how haunted she is by her past. As the book progresses, especially after the halfway point, things just begin to get more and more emotional, and it came to a point where I was itching to continue reading but at the same time I was scared of what would happen next. It was the kind of book that kept you on the edge of your seat, desperately hoping for a certain outcome, and definitely one that's tears-worthy. 
 I really liked Lily as a character. I definitely appreciated her strength, especially in hard times. She was so honest to herself and to other people and it was really great to see. She had her flaws, of course, but those just made her all the more relatable and great. I liked Ryle from the start, but my opinions of him definitely changed all over the place over the course of the book. It's extremely hard to review this book without giving away the plot, so I will just say that the characters and story definitely twisted my heart in the best and worst ways. 
 Overall, this was an incredible and emotional read that had my heart stringing along the whole time. It's such a powerful story and definitely one of Hoover's best novels. It becomes even more powerful when you read the author's note at the end (DO NOT read the author's note before finishing the book - there are spoilers!) and how it relates to Hoover herself. It's definitely a book I would recommend, but be sure to go in prepared with some tissues. If you enjoyed Hoover's other novels, I think you'll enjoy this one. Even if you haven't read any of her books before, I'd recommend this to you because it really is a great read.