You’ve done nothing wrong, it’s not personal. I would be out as much as possible and barely speak to him. Walk away if he starts getting rude. It does sound like mental health but there’s nothing to feel guilty over because if you run someone’s life for them trying to help it stops them needing to change.
My son’s dad was the same, difference was the house was in only my name so I kicked him out, I had to ring my family to come and get him out. I never told anyone what was happening so it came as a surprise to them, not too much as they could all see I was a lot more reserved than what I used to be, my family still don’t know the ins and outs of what happened. Look at help from domestic abuse charities, apply for council housing, look at private rent even if it’s just a one bed whilst you’re on the council list. Do you have any family you could stay with? I wish you and your little girl the best, you are so strong for trying to leave! Your daughter is so lucky to have such a strong mum to look up to xx
Grey rock him, non emotional responses if any at all. OK him when he insults ypu, make your exit plan. Tell a trusted person what's happe ING and what you plan on doing and let them help you. It does take time to get out but his demons are not yours. He's obviously a very traumatised man child who doesn't wish to heal, just blame. And that's not on you. I've been here, I got out and getting stronger, knowing myself, self love and boundaries. It's hard, I still struggle sometimes but so grateful for the path I took. Good luck darling xx