No Sexxxx!!

September 6 2016 was the last time me and my husband had sex! I ask him to have sex with me he says maybe later. He tells me that it isn’t me it’s him and a mental disorder! Well I knew he had a prior drug problem before me could it be he is doing drugs again? He has started counseling but I don’t know if he told them about the problem says he is embarrassed! He also told one of his friends that I bitch and complain too much. (Not true) I have been faithful to him but it’s getting to be to much. What should I do?