@Josephina14 I’m sorry you’re experiencing this.
These situations can occur for a number of reasons, some from how we see our own parents’ setup, others from being worn down in an emotional divisive way.
When you discuss this, does he become verbally abusive?
And just out of interest, does your daughter have his surname or yours?
I would stay where you are and be far less available for this man child unless it’s 50:50 on the deeds.
You are the mother of a shared child.
This sort of selfish behaviour is libido shrivelling for a woman. It’s demeaning and unloving.
Begin putting yourself in lots of social situations and having some fun. He can wonder what you’re doing, and with whom!
If he doesn’t care, well then, you keep socialising and you meet someone much kinder.
When you met him, was he stingy on paying for dates?