This is just my experience. My community is small and my AH and I are popular. He coached Little League for years, was our church youth pastor, etc.
When I first found out about his addiction, I told my mom and very closest friends. Later, he resented me for that. But, that was what I needed. I needed to be able to talk to someone who was on "my side" and wasn't trying to do damage control for him while "counseling" me.
As the years went on, and his addiction got worse, I found it very thearputic (sp?) to tell ANYONE I wanted about what was going on. It was my life too and I was sick and tired of hiding it from everyone. Our whole town now knows and quite frankly I don't think it would help his recovery to have to live a lie (of being the town Golden Boy).
The choice is up to you about who you want to tell and when. It's your life too.