That first month he was wearing a mask.
The one you needed to see for him to manipulate you into doing what he wanted - to replace his mother.
As soon as he secured the place to live, job done. Mask off.
The not washing - that is vile. Shows zero care or respect for you.
So it's time to start looking at your vision for your life, your future.
What do you want?
Do you have a picture in your mind of the kind of life and relationship you want and deserve? Look at it. Is it this? I doubt it.
Is it possible to achieve that?
Well, you've tried and tried to get across to him how you feel, what you need.
It's irrelevant, doesn't matter, because he's got what he wanted. And he isn't prepared to do one damn thing to change what he's doing.
He's fine. You're not. That's not fair.
If that were me, I'd be telling him I wasn't happy with the relationship or his contribution and effort to make it thrive.
I'd be asking him to move back to his mother's.
I think you'd benefit from some support building your self esteem back up. You're worth it.