I have heard of some marriage therapists that won't counsel couples if one is an addict. They want the addict to work on his issues and then you have a little chance on making it as a couple.
If you are saying you like your cozy apartment and things are peaceful, then you need to listen to yourself. Why would you go back to the craziness, if you left it? I understand that you love him, we all love our addicts. Its doesn't mean that we have to live with them, today. See what happens, see if he is ready to get sober on his own.
I am divorcing on Wednesday, closing on my home on the 12 of November. This is after 34 years together. It kills me inside, but it is what I need to do for me. Take your time and don't rush any solutions. Its amazing how things will fall into place, somehow. Good luck!!