It can be hard to say. As a personal anecdote, I used to be big into music. I had bands, I was signed to a label, I toured, after that I had a run doing some hip hop stuff, did a couple albums, did shows. Music was always what I wanted to do, I thought it would always be my thing. Once I had kids, I stepped back from it, and now I just work pretty regular jobs I never would have thought I'd be doing. I grew up and my priorities changed, and if you asked me today to go record an album I don't even know if I'd be able to write enough material. I'm definitely not the same dude I used to be.
All I'm saying is things change, you lose passion for things and maybe you find new passions. If you're done with something, even with the threat of financial instability, if you aren't passionate for it the thought of going back to it can be a real soul-sucking thing.
The thing with Spoony is it just seems like he's lost all passion for everything. Except tweeting, I guess. The dude is totally adrift with no shore in sight, and the one lifeboat he might have, he looks at it and maybe would rather drown.