"Very good advices everyone" lol.
Let me tell you what you gonna do.
Keep on hangin' out with her, maybe she will like u even better then her boyfriend. And if that won't happen then keep on being a "friend" with her until' she breaks up. If she finds u interesting then she will break up with her boyfriend to check if everything is better with you. And if she does, then make a huge first impression. Buy her a rose or smth like that, invite her to the movies (at ur place ;D Buy some pizza or smth like that, chill and watch a movie. The best movies to watch is scary ones or comedians).
So just hang in there buddy, u will make it
Regards,
Hummle91