As someone still in a live-in relationship after 33 years and 3 children, please do what the Eggplant says.

Very early in our relationship, he said in an exasperated tone "Why don't you clean the shower? Can't you see it's dirty?".

My very pragmatic response was "No. I don't see that it's dirty. I'm blind as a bat, and I don't wear my glasses in the shower".

He does cleaning.

I cook, but only do dishes each morning after breakfast. He's OK with that. He doesn't like the way I hang laundry, so he does that.

So yeah, sit down and work out a chore split that works for each person.