He also seems reluctant to say what he thinks. I asked about cancelling an appointment I had ( a home visit .. sort of medical )…. hoping for advice … but just got “
It must be your decision “.
The 'not saying what he thinks' is quite telling, it sounds like he's scared of saying/doing the wrong thing so is freezing in decisions when it comes to your care, maybe there is an element of history in that or maybe he is so used to you making your own decisions he genuinely just doesn't know what to do.
I'm an extremely pro-active person and my DH relies on that too much at times, he has got used to me always knowing what to do and having the confidence to do it, where as he isn't as confident at making decision and following them through when left to his own devices, it's my fault as much as his to be honest, we work so well as a team and he can totally hold his own when it comes to childcare and running the house by himself, but actively caring for and crucially, knowing what the best thing to do for another person who needs help would be terrifying for him.
I'm so sorry you are so ill, I hope you manage to work out a way of getting through it together, you need each other, he's most likely as scared, angry and frustrated as you are but he's purposely not showing it, it may come across as not caring enough, or not feeling enough, or not doing enough, but that may not be a true reflection at all.