OP I'm sorry for your loss
I haven't been through what you have, but I have been through a couple extremely traumatic events, and I think what's happening here is a bit normal in terms of how support tends to evolve from loved ones.
You said earlier that you expect unconditional support from your DH. That's not necessarily unreasonable, but it may be a little unrealistic. Even the kindest people in the world will come to a point where they want life to go a little bit back to normal -- to have their needs and wants at least taken into consideration, if not always given precedence.
You say your DH has been very supportive until now, for 9 months. I don't think he's now trying to say he won't be supportive anymore. I think he is perhaps trying consciously or not to bring in some boundaries, to try to get back to a place where you might at least check with him before committing to something that you expect him to do.
Basically, there will always come a point where you have to transition from getting unconditional support to something slightly more conditional -- because however raw the grief remains, life does go on for other people, and you don't want your own grief to swallow up their lives. It sounds like right now you are not ready to make that transition but perhaps your husband might be.
I'm sorry if any of this sounds harsh, this is just my own experience.