Crazy-making, isn't it?
These are not the words, and more importantly, the ACTIONS of a man who wants to change. It sounds like he is just doing the quacking in order to buy time to get you back into that alcoholic rut with him, where nothing changes. He is saying the pretty things in order to basically wait you out, until things can go back to how they were---him comfortable and convenienced, and you miserable and pulling your hair out. My STBXAH was a master at this type of manipulation.
Don't buy it. You are on the right path. Go do what you need to do to live YOUR best life, and leave him to figure out his. Or not.