Sad and depressed...

My guy never wants to have sex! I'm a nympho. I show my love by being connected sexually to my partner. I have tried everything and he is down to go if it's all about him, but never when it's about me. I don't know what to do. I'm a sexual women! I need to feel wanted. I do love him... Please help. I can't see this relationship going the rest of my life, with sex only every 6 months.