Complicated, something else to consider. When he says you haven't changed, in part, that's because you weren't the one that needed change. Some for sure, but not the drastic change he seems to need.
Also, now that the A is out in the open, your H has a few choices to make. That's not what he expected nor wanted, but it is his responsibility. Once the A is in the open, he has to choose to either continue down that path or change direction. Give up the addiction or not. Only he can make that choice. Your choice is to be ok with either choice he makes. Or not. But there isn't much you can do other than wait and if he decides he wants to talk about it, be open to the conversation without judging. Or put another way, delaying the judging and expressing your feelings until later. And of course you can put your feelings out there right then and there (if he talks about it). You at no time need to take the blame for his A. You at no time need to take the bad behavior toward you.
Kind of like dealing with a very large two year old, ya know?
Peace, AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."