Sadomasochism

I truly believe I'm a sadomasochist. I've talked to my therapist about this, and he said there IS some kind of enjoyment by my part in making people suffer. And there is also the enjoyment of receiving pain - physically or mentally. I enjoy when my gf plays mind games with me or slaps me or beats me up or anything like that, as well as I enjoy other people doing the same, but she's jealous and doesn't let me beat anyone or be beaten by anyone besides her anymore :(. I think the funniest thing to me is making people feel like they're not worth it and make them cry. I have some kind of fetish in making people cry - I always do it, in every opportunity I can. But my girlfriend is also jealous of me giving false expectations to other people just to destroy them, so I have to control my impulses