You poor thing.
Of course he's being a dick. Not only because he's being horrible to you, but because he's stupid with his DC's health and his own. What kind of idiot wants someone who's been vomiting to make dinner?
I don't blame you for making the children food because that's your only option - but still.
I'm glad he's apologised, but I don't blame you for still being angry. In fact, I'm glad you are.
Passing out is bad and any sensible person would be worried about you and your children - are you sure you're ok?
Get well soon. A talk is in order when you feel better.
Sometimes people are harsh on illness in others because they fear their own frailty. That's not to excuse him at all. If that's his reasoning he's a deluded coward. We all get ill. Some of us very seriously. How we deal with it and how we deal with it in our partners is the measure of us.
It could happen to him tomorrow. It might even be festering inside him right now. You might decide to rethink that in sickness or in health bit of the marriage vows. Do tell him that.
It'll give him something to think about when he wakes up in a sweat at 4am 
Anyway, have bread and tinned soup and sleep.