How do you get a guy with a girlfriend to ditch his girlfriend?

when they do a slow dance together, make him do a ballet dip to her then let have him let her go! then walk away

^ That makes no sense. Unfortunately for you, if the guy does not want to ditch his girlfriend, he's not going to no matter what you do. I am assuming that you are interested in this guy (there's not much information on this website). If he wanted to, he would have already done it on his own. Also, if he was interested in you, you would probably know it. The fact of the matter is, he's either not interested in you because he's interested in his current girlfriend, or he's playing you both. Either way, you do not need to be with this guy. I know that's not what you want to hear, but that's how it is.

Ok i think that's a little wierd. if you really liked the guy then just be nice to him and leave him alone. you don't wanna mess with their relationship because it will become worse to you.enbaress his girlfriend right in front of him and say "oops" all innocentley, trust me, i do it all the time