Wlhat should i do about this guy?

Talk to him. Once in a life time you'll find that special boy and he seems like he could be it. If you don't start at least talking to him, you'll live a very long time in regret. Just be his friend and be there for him, if him and his girlfriend don't work out then he'll have someone special like you to lift his spirits up. You should eventually explain why you're so shy - whether through person, text, or facebook, him getting the point is what really matters.This will reure him that it isn't him or you not liking him, but rather a little problem you need help overcoming. My advice: Start talking to him again by whatever means necessary.