I'm sorry x
It's hard at anytime, but right after you've had covid & Christmas it's particularly crap!
I'm afraid I agree with cherchez La femme - men very very self only leave before they've lined up a replacement.
He 'wants' 50:50 so he doesn't have to pay child maintenance.
News for him... HE doesn't get to choose about the house, a judge will. Git.
Please say he doesn't work for himself?!
How do you get on with his Mum?
HTG if he thinks the rest of us have had a brilliant two years he's a deluded twat. It sounds like you have been very supportive while he's just piled all the looking after of the kids into you.
Personally I don't think there's any going back from this, you'd never trust him to be there for you again & at that point you're better off 'going it alone' at least you know where you stand.
I'm really sorry though as I know how devastating it is, but honestly, have s goid cry tonight & be sad for the loss of the future you thought you had together. Then from
Tomorrow TRY your best to move forward! It's easy to waste too much of your time/life/energy in this god awful phase and it does you no good.
As others have said, mive half the money you can to an account in your name and gather up ALL paperwork, put it somewhere safe (best at a friends for now) especially any of his investment/pension details. You & the kids might be entitled to a share of that - though IF you have even pensions, probably not).
Do NOT let him do his 50% (or 1%) in the house, he wanted OUT, he needs to make arrangements out.
What support do you have - other than us?
I really am sorry, I know how much it hurts 💐