There might be alot. I have known guy to simply keep a girl around when they need them. As a type of self esteem builder type of thing. He might like to keep you around cause you like him and it keeps his self esteem up. Also, he might like you, but your trying to hard to be with him pushing him away and can be annoying to him. Don't try hard, and don't force it. Search else where at the same time. Keep him thinking, not you. Then when you decide you fill him in.