I don't know I mean there's a time when a guy has to just give up, and only a fool will go on fighting - personally I'm a bit fool. And you know who taught me that? A little ten year old kid, who was in love with his best friend and wanted to date her. - A TEN year old kid saying "Even if she says we're just friend I'm not gonna give up, I'm not going to tell my heart no, when I know this is right!" and I was like 'Damn o.o' - So it's up to you. I'd say wait for things to cool down, and just... ask her out. Don't work the whole "Are we b/f & g/f thing, just go out more. Don't say as friends or whatnot, just go out. Go for a movie, walking, lunch, club. Whatever the hell comes through your mind. And the second you get that first kiss, you beat it!
You've won right there and then, because she'll KNOW you're boyfriend material. After all, who's she to judge whether or not you'd make a good boyfriend? What does she know about your love life? What does she know about what you have deep inside you. She doesn't know jack, and you my friend, must not give up~