After 4 months of sobriety my AH fell off the wagon. Now he's back, and he thinks I don't know because he' s gone from smelly beer and all the cans to vodka in his iced tea. He gets very defensive if I doubt him so I try not to taste his tea in front of him. I already know the booze is in it. He walks and talks totally differently after a little booze. He says if his mother and I are going to question his sobriety every day then he might as well start drinking again. It's almost like a threat so I feel stuck. Any suggestions.