So there's this guy, and he's such a d*ck. He always asks me for dirty pics but I have a crush on him. I made a mistake one time of sending one. But it never got out, I never did it after. And for the first time we started having a normal conversation then he went to his old ways. I actually felt special. How do I tell him I don't wanna have s*x with him and that if he wants to talk to me it better not be just for pics in a nice way. I would love to stay friends but I feel like he's using me..