If you do not have children with him, then leave.
Do not consider having children with him either.
At the moment, from what you written, you can walk away. You have no ties to him.no obligations.
What sort of a catch is he?
He treats you like dirt, eats your food and wee's in your bed.
He is like an overgrown child.
You deserve someone who is financially secure, can treat you well, look after you, take you out and treat you well.
If you had a daughter and she was in a relationship with someone like this how would you feel?
Sad for what she is letting herself in for?
Angry that another human being can treat your daughter like this?
Cross because you wanted more for her?
Please leave him.