Hi op wow what a huge post,
I remember some of your last posts and I think the first thing I want to say is that you have done an incredibly brave thing, the conversation you have had with him ranks amongst the two hardest things you will have to do about your relationship, the other thing is actually leaving the home/him
You already have a sense of what life is going to be like post him, youve described it as warm and welcoming and anxiety free, these things alone will be enough to mentally see you through the things to come. I would recommend some counselling in the near future to shore up confidence and self esteem. I wouldnt worry about your childrens reaction to the split, all kids really want at the end of the day is familiarity and a secure place, and they will find that with you in abundance.
myself and my son when he was 3 lived in a hostel in a small room for 7 months after my marriage ended, and he doesnt remember anything about it.
My mum said to me at the time, all thats counts is, your kids sit where you sit, sleep where you sleep and eat what you eat, there really isnt anything else they need, other than the love of a parent.
Getting them and you away from him and his influence is the priority the rest is details that will fall in to place as you go along.
Find out all you need to know ref paper work benefits and rights, and time will take care of the rest of it. Dont second guess him, just make your won decisions and stick to them. make sure everyone knows who needs to know, and garner as much rl support as you can.
In time it will get better, I am living proof of this, and there are a lot of us on here honest.
Well done you and onwards on upwards and a very very un mumsnetty hug to boot ( )