Not being able to eat is the WORST. I don't know how people who can't eat for long periods (or forever) do it. I know you have to eat, but if possible do not openly show how much you enjoy eating in front of him. My family would come to visit to supposedly cheer me up, but they can't have a get together without snacks, and they would just chomp away on chips and dips in front of me until I was ready to scream when I was on my feeding tube. Playing cards and other games were always enjoyable to me when I couldn't eat. Just being company and his big sister I'm sure will cheer him up.