Since we have three full bathrooms in the house, Mr. P took over the spare upstairs bathroom soon after we moved in. He does our master bathroom as well, but the other bathroom is where he goes to trim his hair, play his phone games while using the bathroom, etc.
For the most part, I never go into his bathroom. But every once in a while, I’ll go in briefly to wash my hands and then be shocked by how dirty it is. It’s like a college dorm bathroom. He does clean it, eventually, but only after I’ve nagged him about a dozen times and send several puke face emojis.