coolgran whatever you choose to do is tough, I can vouch for that. I stayed with an abusive and alcoholic husband for years after I should have gone, because he was a very good father and DD loved him, and he, her. I kept on hoping that one day he would change, heaven knows I tried, but he was also a bully and a liar. One day I found him telling DD aged 8 that no, she couldn't climb the tree next to the fence to visit her friend next door, nice little girls don't climb trees ( I had been letting her do it all year, after checking the tree was safe and low enough on both sides) and suddenly thought, I don't want this man bringing up my DD. He is a sexist alcoholic bully, what was I thinking. He always wanted her to wear skirts and be ladylike. It took a year to plan my escape.
After I left, it was incredibly hard, maybe even worse than staying at times, with restraint orders, threats, he tried to mow us both down in the car, tried to get custody, but I stuck it out. DD is now 30 and by the age of 14 was fully aware of all her DF's failings, without me ever having to point them out to her. However I have EVERY sympathy with those who give in and return. Or stay. It took years for the nightmares to stop, and I am quite tough.