Peas I have enormous guilt that our lives have been turned upside down through me being ill. Our lives prior to this were great, obviously being ill isn't a barrel of laughs but my DH is the one who has effectively "taken over" and shouldered the burdens of bringing in a wage to support us all, plus dealing with all the house stuff.
This was very hard for me to come to terms with, I suspect that, like me, you enjoy being "in control", independent and responsible and are reluctant to be "looked after" (I'm probably wording this very badly, apologies)
It's difficult enough to live with a hard situation with support. If you don't have the right support from your partner, I actually think no support is easier in a way. It seems like you have been supporting your DH in all kinds of ways - now it is "your turn" (yes I'm wording this terribly) and possibly he isn't able to step up to the plate and support you. I don't just mean financially of course.
I often worry aloud that I am a burden etc and DH says that this is the whole point of "for better for worse, sickness and health". Lives change, circumstances change and we all have to adapt to them.
As the favourite MN saying, your DH is telling you who he is...listen to him. He's quite happy for you to take care of him, but he won't entertain taking care of you. All this "can't get a job" bollocks, is well, bollocks. I know times are tough and jobs are difficult to get, areas vary but here but there are usually cleaning/ warehousing, lots of NMW jobs about - and you have to be prepared to do anything if you need the money.
When I look back at the last couple of years I think our lives have been like one of those wanky team building exercises, where you fall backwards and someone catches you. I have more love and respect for my DH than even as he "caught" me, it's the whole point of a committed relationship - you look after each other.
If your DH is telling you he isn't willing to even entertain the idea of stepping out of his comfort zone, to catch you if you fall, he is telling you that unfortunately his comfort (and easy life) is more important to him than your comfort.
In your shoes, I don't think I would have that much love and respect left for him after that. It's hard being ill, whether physically or mentally, and if people can't support you in your times of need, you're better off without those people - who take but don't give.
I'm sorry. It's very hard I know.