For a man who has bumbled and tumbled through life that's pretty much slapped him silly every time he tries to do some inane thing he's "sure" will work, Chris admittedly somehow manages on that Tugboat even though where the hell all the money he spends (he spent $1500 over the course of a month, based on known transaction records, even a ween donation fund isn't covering that) remains questionable.
"Festering" would be a more accurate term to describe Chris.
Emotions have a big role to play in this. Someone who exists lets emotions such as fear and anger dictate what they can and can’t do. Someone who is living understands those emotions, controls them and doesn’t let them interfere with their decisions.
To paraphrase someone else, we're not getting the full picture of Chris' life from Facebook updates. I have a feeling he's happier and "living" more than he appears to be.