The only insight I can give you about how women think is:
Women think emotionally, it's about how they feel at the time their presented with a particular problem/issue that determine's the outcome.
Men think logically, isolating problems and catorgizing them independantly. Men can take a problem and box it away until it's time to deal with it. A woman can't do that, they have to solve the problem immediately, with a justifiable answer which may not be logically correct, it just has to justified in her mind.
If I were you, I would be thinking she's been messin' around on me, which would piss me off, and I wouldn't have anything to do with her. It doesn't matter if she did or didn't at this point.
That thought process would make it easier for me not to make contact or want too.