Well I bet this thread is making you feel better gently
I wonder how many people commenting so meanly, have been in this situation themselves? Telling someone who is expressing understandable upset and sadness at a crap situation, that she is being extremely selfish and me, me, me is a knobbish thing to do. It's possible to express yourself more kindly if you think is being unreasonable (and even that sounds horrible!) It's such a hard situation.
I remember your earlier thread Gently, and I don't think your DH came out of that well, and it was a slightly different take on it. IIRC you felt that given the very sudden changes, your DC were benefitting from having your DH (their parent) around to give them some continuity and reassurance, as well as helping you through a very traumatic time. IIRC your DH's desire to return to work so soon wasn't so much financial as he felt he would be happier?
I am in a slightly different situation as my DH's circumstances were an insecure lower paid job, so there was even more pressure on him to go to work and support us. Even so, sometimes this isn't possible - the childcare involved in one parent being repeatedly in hospital doesn't lend itself to employment like this.
My DH was also very keen to return to work to provide money (and to keep him sane!). He recognised however that I needed support and the DC needed support, emotionally as well as financially. We have compromised on part time employment (ironically he earns too much to claim carers allowance despite working unsociable shifts to come home and do a full days caring 
I know he would prefer to work full time. He knows I would prefer to have him at home. For us, this is the best compromise as we both desire each other's happiness, and the wellbeing of our DC, whilst balancing the finances.
It's such a hard situation and for everyone saying you're being selfish, yes your whole family's circumstances have changed but you are the one who is unwell and having the physical effects to cope with as well as the mental effects.
The irony is also carers allowance is approx £68 per week for minimum 35 hours care. My DH still does this but earns just too much to qualify for the allowance. Imagine how much it costs the state to pay for carers visits! If the role of familial carers was properly recognised and financially supported, I think we would all be better off.