In addition, I was always under the impression that she understood why Harry was doing what he was doing, and that she was doing the same thing he was during DH - fighting and doing what they had to do, and hoping that one day when things were normal they could see where they had left off. Otherwise, why else would she have kissed him like that on his birthday? I always saw that kiss as her way of saying, "Don't forget about me, I'll be waiting for you."
Originally posted by Jess:
If that's the entire premise of the story, you may want to consider something else. Ginny is a fiercely loyal person, and revenge dating just doesn't ring true to me in any way.