Rose this sounds like a really conflicting time for you and I'm really sorry your finding yourself in the middle of nowhere.
In my honest opinion I feel like you need to be cruel to be kind, no one likes to be the bad guy but sometimes we just have to. You are being emotionally manipulated in many ways firstly he said that he won't have attendants helping with showering but then is telling you he almost slipped and no one would know!! I feel like you need to be really tough and blunt with him "if you want the joyous freedom of living in your own home then you will accept all help offered from all services, I will be going away when your daughter is here so she needs to take control"
I think your doing an amazing job and I tip my hat to you mam if only the world was filled of more selfless loving people as yourself