There has not been too many years in my life when I wasn't a caregiver, First when I had children, later an ailing grandfather, then am ailing mother in law and now my son. One thing you have to do is take care of the caregiver. YOU Without you things will be much worse for Bill. It is not selfish to think of yourself. (Trust me...I know the guilt related to that statement but you will get over it) Bill needs to do what Bill can do for himself or Bill's time on earth is going to be even shorter. Put you a coffee pot out there on that cute little patio of yours and get you a stack of magazines and books you will enjoy. You won't be that far from Bill if he needs you but if you are out of sight I will just bet he will manage to do some things for himself. You are just too convenient for him when he sees you.
See you in a few days...in the meantime call if there is anything we can do..
