cute party guy

I know this guy from school and we didn't really talk much but we were both at this one party and we started talking. He's really cute and I got the vibe that he was into me like the way he acted and he kept coming over to talk to me and we started talking about our families and at one point I thought he was gonna kiss me but my friend (who decided she now likes him) came in and cockblocked me the rest of the night and in the morning. Oh also I found out he has a gf but my other friend noticed that he was into me too. I think I'll wait till the next party and hopefully he and his gf break up by then so I can make my move.