Kassie it sounds like you may be going through some of the same emotions as my wife. She was never sure how seriously I took my addiction and sobriety. Our MC at the time told me this and I was shocked, I was doing everything your H is doing and thinking how could she not know...Well I never told her, like your H I wanted her support.
One day I decided to write my wife a letter telling her that my sobriety was the most important thing in my life. It was a very hard letter to word and my IC helped me a lot. The jist was that wo/sobriety I couldn't have anything else no W, no family maybe and very possible no life.
Now obviously my M is still not good, but now at least my wife has gone from I won't ever trust you again to just having some trust issues.
Maybe you can ask your H, when it seems right how important his sobriety is to him. If he tries to somehow involve you remind him that it's his journey and with or without you he has to take it.
Me:40 W: 39 T: 17 years M: 15 years S-9 D-6 D final 11/10/2009
"We are all faced with a series of great opportunities brilliantly disguised as insoluble problems."