I am OBSESSED with him

Have been seeing this guy for a few months now. He has not yet asked me to be his girlfriend. It got really intense before he moved away but we didn't have sex. He is everything I want in a guy. Dominant, funny, witty, caring, affectionate. He got me into bondage and as I am naturally submissive it felt amazing. Now all I do is think about him. I love the way he talks, the way he handles me, how self assured he is. But I am sure that I am more into him than he is into me. I always make the first move and feel like I am making more effort. I think about him 24/7. I am not getting much studying done and all I do with my friends is talk about him. It's wrong I know but I have never felt this way before. How can I put a stop to this?