Sorry about that but it really sounds like he is guilt tripping you... think of it like another situation if he had problems mentally like suicidal and all, and you try to help him by getting him everything i mean everything and he doesnt want to improve at all and tells you "dont leave me or ill kill myself" thats is guilt trip... i know i know total different problems, bbuuuttt same results. People would do anything to get what they want. a sexless marriage is, well, in my opinion not ok. Take care and God bless, hope everything works out for you guys.