I'm really not trying to rain on your parade or anything, but you said he's already got a g/f? I'd just be friends and hold off on the flirting until that relationship had run its course. I mean, new crushes are always exciting and it can be hard not to flirt, but I've been the "other girl" and it sucks. And anyway, if he dumps her for you, doesn't that mean he might just dump you for someone else? I might be full of bad advice because I'm still a little bitter about what happened. And just to conclude things, I know it prolly seems like u are meant to be or something like that, but I think just about everyone feels that way about the person they are crushing on. Not to say that it's not the case with you and your maybe future man, just that it's too soon to know

good luck with everything!