The best place for the scarred is a nice uncleaned room; with it are the few necessary things he'll need to keep himself going.
He could go on for days without having someone to speak with and frankly he'd be much better that way than putting himself out there where everyone is sickening and annoying.
What could have caused this way of seemingly irrational thinking doesn't need to be explained.
As long as there are ******* and phonies trying to take down one another, and others getting dragged along their crap, the world will never fulfill the rest of our lives.