My boyfriend hasn’t showered in 3 days today makes day 3.

I’ve repeatedly asked him please don’t smoke cigarettes in the bathroom. Ok great. But he hasn’t showered and it’s bothering me. So I’ve also asked nicely when you come in could you not lay in the bed with your street clothes on and he’s a mechanic so you know they are oily and dirty, of course. Well today I’m annoyed the first night I didn’t lay with him because he didn’t shower nor attempt to or mention it I walked around like geewhiz it smells no attempt to shower .... then yesterday no shower but I put clean sheets on the bed so he knows why I did and I laid with him because he talked about taking one never did today I’m thinking of sleeping on the couch again because he’s still laying in the bed and no shower.... what should I do ? 😢