Hi and welcome to PC. Your story is heartbreaking. It is obvious that your husband has no interest in you or your needs. Why would you want to stay with a man who has been given several chances to fix the problem but doesn't care enough of to do anything about it? I think there is more going on with him other than the on the surface problem, but he doesn't seem to want to work out. Personally, I would cut my losses and leave and finds someone who loved me.