This is so weird, but here goes.
My friends like this guy, and I am talking to him for them.Well, this one girl who likes him has gone out with everyone, and when I liked a guy she went out wit him even though she knew I liked him, but now I thik I might like this guy, but I have no idea.
What should I do?

First, it usually gets really messy when you become the "go-between" person for other people so let your friends take care of their own interests. Secondly, if you are interested in this guy, there is nothing wrong with letting him know. Don't pursue him to get back at the other girl who also likes him. Do it if you truly do like him. Then let the cards fall where they may...

Thanks manimuth! I'll try it