I think the answer is that this relationship is in serious trouble, and probably you should separate. But before you make that decision, first you should look at the relationship as a whole. You wrote to me about your sexual problems. (And the fact that you two haven’t had sex in months and he’s chosen not to go to the doctor to remedy this situation is an indication that he’s getting his sexual release elsewhere, though that could be from masturbation.) But how is the relationship in other aspects? Do you talk? Does he offer you companionship? Does he say he loves you? Does he help around the house? How are your financial arrangements working out? If there is trouble in each of these areas, then I’d say to speak to a lawyer. If the problems are only in the sexual arena, then you should see a counselor as maybe you can repair this situation. The problems you two are having with your sex life may be a symptom of larger issues, or they may stand alone and then with a little effort could be repairable. So make a complete analysis of the relationship and then act accordingly.