Husband doesn’t brush teeth

My husband doesn’t brush his teeth at night. I think it’s disgusting and unhealthy and even though I know he’s an adult and responsible for himself it makes me crazy. I have told him so many times that it’s gross and means that I sleep beside him with bad breath and he still doesn’t brush his teeth most of the time. I’m mostly just venting here, but is this a thing for anyone else? It’s dumb but it drives me nuts.