@CZP22
You say he's a great Dad, but he's not thinking of her right now. You're her Mum & her main caregiver, you're unhappy, that's not in her best interest.
If he wasn't in a position to have another child, he should have used contraception not just relied on you doing so.
He just expected you to have an abortion.
He's had her one night a week since birth (really?) you've had her 6 nights a week.
He works all hours, drives around the country, he could come & see her (sounds like your partner would be ok with that).
No, it's not ideal, but it was never going to be when you had a baby with a ONS (no judgement, just a fact). He wanted you to terminate, (understandably) you didn't want to, he had the option to walk away. DD is pre school, she doesn't have established friendships/school etc You never had a relationship with him, you don't deserve to be controlled, by him, for 18 years. When you want to move back to your friends & family & have some support.
I'd move in with DP, tell her Dad it's better for DD for you to be happy & have the support of friends & family, for him to come & visit & he can FaceTime etc.
He wanted to terminate her, you're only moving 1-2 hours away.