Yes, you should end it. Any guy that wants to use you as a so called partner but doesn't want a relationship is as I said, using you and your time. He is not worth it because he doesn't want to hold a steady relationship- he just wants to temporarily use you to get in bed. This is why he says he doesn't want a relationship, because he really wants to use girls in general. He is not worth your time. Find someone else.
experience, knowledge, and Jewish wisdom