I found it a bit....well, limp, tbh. I got really into it at the start and then couldn't work out where it was going to go.....finished it feeling a bit let down, somehow. Although I do quite enjoy his matter-of-fact writing style.
Yes, I think she did move to America to be with Tucker (and have his baby). I thought the ending was a bit underwhelming. The other thing that annoyed me about the book was the way that Duncan sounded so unnattractive and yet managed to pull so easily. Saying that, other than those two things I enjoyed the book.