Dawn, Sounds like he's looking for "fun" things to do. Something that doesn't have responsibility written all over it. Hmmm, he could wash his clothes and watch them spin in the dryer. He could clean himself up and feel better. I wonder if he would get in the bathtub if you had some bath toys, i.e., little yellow rubber duckie for him to play with.
He's depressed, but honestly there's no excuse for not bathing. I read where K. Stewart is doing the same thing, i.e., not bathing. Apparently she's having an issue w/depression as well.
I feel for you because it's not easy when they are living under the same roof.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.