Hi Happy. Welcome to you!
I was worried how hub would react when I first gave up the booze too. My situation is similar to yours 20 + years of hub and me drinking. Over the weeks he has come to see me become happier and happier (mostly) and I think that puts him at ease. He is also drinking less (except for a big blip last weekend

)
I think that any big change takes some time for everyone to come to terms with. It is a big learning curve for both of you. My advice would be to just give it time.
Take care and good luck - you are doing great !