He will be back and, as you've taken him back before even in the face of these terrible things, you must be very strong.
He will eventually kill you. Imagine that. You will leave your children without a mother because you were so desperate for a man, any man, that you were prepared to accept behaviour that a pig wouldn't accept and that eventually caused your death.
One woman is killed in domestic abuse in England and Wales every five days. Do you think those men announced their intention to kill these women? No, they built up to it.
Some men are subtle about it, hide their murderous intentions and take a long time to murder . Others can't help but show the signs early on. You are lucky. He has shown the signs early and you can react by saving yourself. Other women don't always get that chance.
Imagine your photo in the paper, with details of his court case for murdering you going on and the piece including a quote from someone close to you saying that they never trusted him, that you didn't deserve it and that they feel sorry for your children.
Have a rest from men. You've had an 11 year relationship, which wasn't good and here you are about to do another 11 years with a shit.
You have your children. Concentrate on them. Give yourself 100% to them and when they're reared and gone, that's your time to look for someone decent.
I worry you will take this abuser back and I implore you not to do so.