Well, I personally don't like her, but if she makes him happy... *Shrug* I don't like Kirsten as Bella though, Bella's supposed to be quiet and conservative. Kirsten was like a stoned zombie in that movie, I don't think she brought much of the book Bella to life at all. Sorry Kirsten fans. ^^;;
The Bella in the book is great for him, I've read the first chapter of midnight sun, and he's really interested/attracted to her, because he can't read her mind - guess that's part of why he loves her, because she's different than anyone he's met in te past century.
But the Bella in the movie is kinda... annoying. They should had picked Leighton Meester, she is sooo much lebih a cheery person (and Bella always is when Edward is around.)