You do NOT deserve the treatment he is giving you.
I can't fairly compare my situation to yours, as we have no children still living at home with us.
He is in recovery from a MAJOR op five weeks ago, prior to that I had been doing everything because he was dangerously sick for four and a half years.
Unfortunately, a week after he was discharged from hospital, I fell sick, and still am with an (up to now) undiagnosed condition that I am in constant pain with at either 5/10 or 10/10.
When it's at the higher level, despite his post op difficulties, he does everything (aside from lifting, as that would be dangerous), he is exhausted most of the time, but when it's needed, he is my godsend.
Of course when I'm at a lower level, I absolutely get up and try my hardest to take on tasks so that I can relieve him.
The point I'm trying to illustrate, is that in a true partnership, you are their for each other.
If either of us lived solo, we would have to do everything, so whatever we can do for each other coz we do share our home, is a bonus.
I agree with pp, that you are being regarded as a broken down piece of very useful equipment, and you've upset his normal ability to be the lazy gut that he feels entitled to be, coz he's got away with behaving that way when you are well.
Please when you're better, try and talk together about a way forward that benefits both of you.
If that's not achievable, for whatever reason.
Then put your thinking cap on about the "ducks in a row" and coming back to Mumsnet so that the knowledgeable people on here that have unfortunately experienced poor unacceptable behaviour, can guide you to a better future, and better examples for your children to respect.
Good luck, and rest up...