I

have a problem with boyfriend destroyers.
I meet this girl that is really flirty with me, and keeps the kino-touching high. and she is really teasing me. I have been negging her, being cocky-funny and applying every part of the game that I know.
In one of the things that we were doing the boyfriend came out quite like a unwanted thing. After that she told me "are you mad to know that I have a boyfriend?". I answered neutral and try to keep things going making her laugh and everything.
I used some silly games, also the cube and that stuff. She seemed quite closed, I had her number, and email, and facebook. The next day I went to some class and she was around so we met again.
This time she put out the boyfriend stuff a lot more, and each time i tried to kino-touch she retired herself a bit. then i ask her how long she has been whit his boyfriend (8 months, he is 32, works in some math firm and they just move together) so I used the question of when is the wedding. She answered that she hopes that it is when she returned. So i used the "your Bf is awesome" tactic, it seemed to work but not as i would like it to. then she started to talk a lot about other things and each time she mentioned the boyfriend i used the same tactic (i think that was a mistake from me) and so. I acted a lot afc, but she was even thought quite flirty and everything, so i keep on with the game.
At the end it seemed to go nowhere else. so i went into her apartment (shared apartment we are both students, she is Slovenian) and like we were in the living room and she was just putting stuff in the fridge i just decided to take my leave. I told her to meet me in Friday for a beer an that I am not accepting a no for answer. while i was just walking away from her.
The strange thing is that to everyone she knows and asks about the boyfriend she says that she hopes that they survive the 6 months apart(she is in a kind of interchange). And that for try to overpass that she told him to buy tickets to see her each month.
I don't know what to do. I am desperate, I have been absorbing knowledge from everywhere to try to overpower this but i haven't find a way.
Help me please..!!!