Hi. I'm sorry you're going through that! My dad would get so mad at me when I wouldn't get out of bed! Maybe try making him a nice breakfast in bed? Well balanced.. And give him vitamins? When I wouldn't want to get out of bed or leave the house my mom would coax me with something fun. "Let's go shopping for just an hour Sarah" "Let's go to the movies, you want to see that one movie, right? Then we'll come right back home" Or "Let's get some frozen yogurt! Then we'll come right back! I promise." Or even just making it from the bed to the couch to watch a tv show? If he isn't eating properly though I think that's a big issue.
Good luck and you sound like a nice and patient wife! (: