You are probably right BUT (and your not gonna like this bit ...) the overwhelming #1 reason why people have an adverse reaction when they realise they are getting emotionally involved with someone is because they feel somewhere deep down that they can find someone better eventually. She got annoyed with you when she realised what was happening because she was subconsciously blaming you for depriving her of the perfect man she thinks she will eventually find.

I'm really sorry but this is almost certainly the case here and I'm going to write it in even bigger letters ... this girl thinks she can find someone better than you despite how much she might like you right now.

Seriously beware. Even if you do at some point win her back by some combination of emotional blackmail and freezing her out, she will always have that doubt, that thought that you were not the best she could find. One day she will think that same thought again.

the above seems like a sound analysis