I was really hooked in to the beginning of the book, and found the exchange of letters between the two of them to be really compelling, but as the book kept moving along, I found myself just less and less interested in their story. I'm trying to be better about quitting books instead of slogging through it, and I just kept looking at the number of hours left being like "do I really want to listen to another 5.5 hours of this?" and the answer was no! And that's okay. It's a really well reviewed book, but it just wasn't working for me.