Welcome to SR! Your husband is playing a game of chicken. Who is going to bend? Will it be you? It won't be him. You are at a crossroads.
Its not personal. It really isn't though it feels that way. Many people come here very depressed when they find they can't love their alcoholic sober. The work and the effort wasn't for naught though you may feel that way. Had your husband decided to walk recovery path this would have been beneficial to him. Had you not supported him they way you did you would be blaming yourself for not having tried. You did the best you could for your marriage. Problem was (as is often happens) your husband was never fully committed to recovery. No way to know that until you try.
NO point in lashing back! You won't accomplish ANYTHING but make yourself more upset. You can't logic with an alcoholic! His responses to you will always be in defense of the alcohol. YOU will be the problem, YOU will be blamed. best navigation is to avoid any kind of discussions with him about this. Believe him when he says he isn't quitting.
I get a feeling of ambivalence about whether you are really ready to end the marriage - are you? Its ok if you aren't. We are here to help you either way.