I think this book is longer then the others in the series. Maybe it's just longer then the last few books.
There's a big reveal about Paul (who isn't really who he says he is). I figured out who he was long before we get to that point, and I won't spoil too much by saying who he is. He never lies to her, just omits things.
I really loved these two together and was surprised at the reminder that it's only been a week. The book starts during the weekend and ends that Friday, with an epilogue set two months after the end of the book.
I could have done without the whole coincidence that his name just happens to be Paul. I get that some names are popular, but poor Kaitlin didn't need the added confusion of that. I expected her ex Paul to show up at some point and confuse people even more.