Always looking the wrong way

I REALLY like this guy from my school,but he has a girlfriend.Which is no surprise because that's what always happens.When I start liking someone,they already have a girlfriend,or get one right after I start liking them,which sends my self-esteem even further through the floor.The guy I like right now is sort of popular and I'm not.The thing is,he just came up to me at a very random time and started talking,which is weird because he hasn't talked to me before like,a week ago when he surprised me.We've been talking almost every day.We even have an inside joke.I really want to like him,but it feels wrong now that I know that he has a girlfriend.And I want to be with him so much it almost hurts,but I don't want to make him have to choose if his girlfriend is the jealous type.

Popular guys are sometimes the nice guys and some people dont realise it but how often does he get ah girlfriend and actually keep them maybe you should wait a cupl of weeks and still speek to him like you are and see if him and his girlfriend break up??!!

Keep on being friends, trust me. Just because he has a girlfriend doesn't mean it'll last! Friends often end up in a relationship anyway. His girlfriend may leave, and then you'll be there! Who knows? Maybe after a while he'll know more about you than he knows about his girl! Just don't give up hope.