I don't want to have sex with him

He always make sexual remarks and jokes here and there and that really just disgust me at this point. He keeps asking me to please let him have sex with him and  my answer  is always no. He also asks if he can get head since we can't have sex yet and it really just makes me want to throw up that fact that he's asking. Today he said he had bought condoms and lube so can have sex and I got a bit upset cause I already told him I don't want to. I feel he doesn't really care how I feel he just wants his needs meet.

Has anyone else gone through this? What's wrong with me? I know I'm  not self conscious about my body, so why don't I feel flattered that my husband still wants me?