For me when I decided to quit I couldn't be around anyone that drank. I severed all those relationships and didn't see many of my drinking buddies for over a year. If I was living with someone that was drinking I never would have made it.
When your married to that person it is a tough spot. If it was just a boyfriend or girlfriend I would say move on and get away from them if they won't support you. Tougher to do when you are married to them.
I do see purple knights point of getting it out of your head what other people can do and the nut allergy analogy. Having said that though if I was in a relationship with someone who couldn't eat peanut butter I would never eat it around them or keep it on the house.
So as others have said it is all up to us. We can choose to stay in an environment that isn't healthy or get away from it.