I think Chris has the potential to get into a sustainable, but possibly bleak, trailer park (or section

lifestyle after Barb passes.
I think it'll depend on him having someone responsible, like one of his therapists or someone, to help him make the transition. Sell off Barb's stuff, sell the house, find housing, get into a routine, etc.
Now I suspect that he might have very little spare cash after his monthly bills are paid, which is going to be like hitting a brick wall after the lifestyle he's accustomed to.