She's playing you. Trust me, I'm a girl. ;) Been there, done that, have the t-shirts. The best thing you can do is be indifferent. That absolutely drives girls crazy. It's a real power trips to chicks when they have LOTS of guys panting over them...it's all an ego game. Chicks just have to have guys who are "unobtainable".
She sounds like she has some growing up to do, also. She has a boyfriend, but is playing around with you. Hmmm....what type of girlfriend material is she anyway? Is she what you would want in a girlfriend?
Anyway, be cool...be indifferent but don't completely go away. If you play the indifferent role, she'll be chasing after you....just so she can conquer you. Then you'll be holding the trump card and you can decide where this relationship goes.
