I admit, the first book I really didn't like Chloe very much. I didn't like the way she was playing both guys in her life.
But as the 2nd and 3rd books move forward, you begin to understand her a little better and see how much she has grown.
I love that she in the end.. understands her feelings for both guys, and what it means. Whom she is meant to be with. I think the story was done realistically in the end, I mean after all, she is sixteen years old and so to a point her actions made sense to begin with.
Her friendships with her best friends was also one of the highlights of the books, while they had their ups and downs, they all came out stronger in the end.