I don't think this individual knows what she wants unless she's in the moment, which is bad for people like you who are on the receiving end of these attention seekers. I agree with Acetrimmer that her earlier episode with this other fella was likely a similar scenario of wanting attention, but getting more than she wanted. If I were in your shoes, I would not invest any more energy in this person, because if she's this challenging at the easiest stage of expressing yourself, then it's only going to get worse. She clearly doesn't know what she wants, but she's well versed in playing games for the attention, where she can easily default out by saying you crossed a line. Don't waste your time. Life is complicated enough without the mind games. Move on to someone who is better deserving.