I was watching my friend flirt it up with a girl last night. She started teasing him during the flirting and frankly at one point got kinda mean. After we left I was talking to him and he said that that happens a lot to him and doesn't know what to do when the flirting turns into teasing turns into flat out insulting.
To me it looked like she was just trying to damage his confidence. Some women seem to find that flirty. I told him that next time she is like that to tell her "Look your crossing a line with your attitude. I'm not going to want to continue talking to you if you keep acting this way."
Spoke to a female friend about it and she thinks I gave him the wrong advice. She seems to think he should get equally as teasing and mean as this is the girls way of showing you she wants it. Frankly that makes no sense but what do you girls say?