I think he must be annoyed to no end. Constant repetition of even the best things in the world would eventually get annoying if you expect a reaction from him. The situation is certainly unfortunate and lots of men would love to take over from him here but he is where he is at. Maybe give him some peace for a couple of weeks, like a total moratorium, zero expectations, read a book before bed if you can, wear plain pajamas, and then talk to him about sex without seducing him. Just talk.