4.5 
 First of all, the music in this book was amazing so obviously I listened to it while I was reading the book! Oh man I was near to cry in a few parts, in my opinion Grace is a stronger girl/woman who had a though life and seeing her with Matt was something lovely to read. I loved the backstory when they were young. So good. 
 Fun fact: The song "When we were young" by Adele reminds me a lot of the plot of this book, it's so accurate.