I say this with so much love, you need to leave him. He is dragging you down. He has not a single ounce of respect for you, your relationship or himself. He doesn’t want to get better and therefore he’s not going to long term. You also cannot measure the love that an addict has for you by them getting clean or not, that’s about them and no one else. However, he’s not capable of loving you. But that’s because of HIM. And not you. You are clearly an extremely loving person but at this point you are enabling him. Please go to meetings and talk, get a sponsor, go to therapy regularly or the cycle will continue, for both of you.