Can't think of a single thing that was missing for me. The characters were complex and flawed. No one made any incomprehensible decisions- they were all in tough spots and did their best in a very relatable, human way. I liked Emma and I understood why she was so torn, even though I had my favorite from the start. Also, I just couldn't stop reading. I sat down on the couch and aside from one bathroom break, I read this one straight through. (This has been such a great long weekend for reading and we're not even halfway through!)