Am I just not sexy enough?

Am I the only one with a boyfriend who even if I prance around in nothing but a towel... Gets completely ignored? Like he has zero intrest in doing things. When I want to, it's a no. When he wants to, I always do. 
My sex life sucks ass. He gets what he wants and I don't. (I also never cum.) 
What should I do?? I love him so much but this is becoming a problem.