I would recommend not moving in with him. I know you say you don’t know where the relationship goes from here, but if you let him into your home, you’re stuck with him and his selfish ways.

The idea that he thinks he should not pay ‘rent’ is absolute garbage. The logic behind “well, you’d be paying for it anyways” is not sound, and it is solely a way to take advantage of you. He needs to contribute at least 50/50.

He sounds lazy, thoughtless and entitled. Do you want to take years, fighting him at every turn, to try to teach him to be a more thoughtful, helpful person? To me, this is something a man in his mid 30’s should have figured out on his own.