You’re at his beck and call
I almost bought my husband a little bell so he could ring it when he needed me during his illness. I knew that it was hard on him to yell across the house, and I worried I may accidentally have my cell phone on silent. But, also, I made sure my cell phone volume was on and turned up, so he could call or text me from his room if he needed anything. I also popped by his room once an hour to see if he needed anything while resting. His health was my top priority, and I very much behaved as if a sick person was in my charge. If he needed something, I dropped everything I was doing and did it.