In terms of what I think he could do, he thought it was ridiculous that he would have anything to do since, after all, it's my problem, not his.
I would disagree with your husband mle.
I haven't got much experience from the other side of being in a relationship with an alcoholic, but I do know the best relationships are the ones where you work at it, and you work in tandem.
From my own personal experience of being the alcoholic in relationships, it's easy to let our guilt keep us down - especially if others seem incapable of ever forgiving us our transgressions.
I got sober after a long stretch of being alone, but I still have ex gfs who cannot or will not forgive me.
I'll wear that responsibility, but I won't let it own me.
I'm doing my best to live a good life - I've genuinely done all I can - if others can't appreciate that because of whatever resentments, however justified - I have to consider it their issue, not mine.
How do you garner trust from someone reticent to give it?
I don't know - maybe this one is 'not your problem' ?
Still as Astro says - recovery is a process, a life-long one.
What's 'fact' this month might not be the next.
I wish you well
D