Sounds like 2 retards having a battle of wits...
or half-wits...
100% agree, conversation is strange, its like your try having some stupid conversation convince yourself that your are clever/smarter or something, and now trying to get confirmation of the getbig people to hold your back.
Question peoples behaviour and trying to always be the clever one in conversations often left u alone. Most people just got tired of this behaviour and leave! Its like "ok let he be right" bye...
The girl seem to be nice, she is just careful, and u attack her of that. This careful behaviour made her learn your personality a little better. She gave you some Resistance and the conversation just became not so friendly! There is pretty much fucked up men out there not being SERIALKILLERS haha, and u will notice it pretty quick if u give it some time.
You are the looser, not she. She have 10-20 new emails every day of guys wanne meet her, u got none!