@Chickencuddle I don’t want to sound harsh, because it’s the last thing you need at this critical time. However, men like this don’t change. Even if he agrees to counselling, a parenting course and anger management (which he would need because of the way he reacts to the kids). It’s unlikely he will admit to everything he has done (rape, sexual abuse, the way he treats the children, the way he treats you), unless he is willing to do that, not just to you but to a counsellor, he isn’t going to get anywhere.
The usual way this goes is, he agrees to everything you say, then he puts off ‘I will make more of an effort’ ‘let’s see how it goes and then if it doesn’t work we will go’ or talks you round to thinking that it’s unnecessary and your fault, ‘do you not think if you did (x) it would be better’ - it is NOT your fault and you should NOT have to put up with being groped and sexually abused and rape and being hurt.
Then after a period of good behaviour, he will start to chip away again and you will be back to square one.
I completely understand where you are coming from, especially after everything you have been through. But you deserve this chance and so do your children, equally nobody deserves to have to be treated like this.
Children who have a loving parent bounce back so easily, they will feel safe and free. You will be so surprised.
Whereas currently they are being shouted and punished for normal behaviour. They don’t even like being alone with him - this is 100% beyond normal. There are strict parents and there are abusive parents, he is damaging them.
Also to consider is, if things continue the way things are currently going, it will be a lot worse if your children display any sexualised behaviour in school and social services get involved.
I hope I haven’t been too harsh, I just want you to consider everything before you make this decision. It’s taken you so long to get here and I would hate for things to inevitably continue or get worse and you look back and wish that you had followed through with the refuge - which is definitely the best course of action.