High sex drive?

I have an unusually high sex drive. Been this way since I lost my virginity at age 15. My boyfriend  thinks he has a normal sex drive, but I'm always the one initiating it and he turns me down. (We live together).  It's kind of upsetting because I'm always wanting it when he doesn't, and when he does I can't say no because I'm horny constantly. Can someone help with this? I've researched hyper sexuality but that doesn't seem to fit me.