As someone who has been in relationships where my worth to my partner depended on how much I turned them on and got them off, I sympathize with you quite a lot. Listen, sweetie, he doesn't deserve you. He can't appreciate you as a human being. Relationships should always be about love, first and foremost, not lust. You'll find someone way, way better and then you'll wonder why you ever stayed with him to begin with. In the meantime, here's a warm hug to help get you through the pain of the breakup. Things will get better, okay? I promise.
*hugs*