Brainlessness

So, a friend of mine (and I'm using the term friend very loosely here) is getting depressed and threatening to leave the Internet just because other people aren't acknowledging his particular way of ... expanding on another artist's work. Specifically, he took a species created by someone else, made them into a gooey, vore-obsessed versiont hat never reaches a mental maturity above the age of 13, but now he's upset because he's not well-known for that (despite it being a completely unoriginal concept) and that other people have done far better artwork of the same species inspired by the original artist's work.

As a result of this, he's both threatening to leave the Internet and wished he had a gun for, well, rather obvious reasons. Given that he's been talking about both of these things for over a year, though, I've told him to go see a psychologist and print out this chat log. He refuses to do so. I translated that as "I refuse to do anything that would allow someone to help me" and he went off on a rant about how he thinks he's right, how he doesn't want to disclose anything he deos online, and how he doesn't feel like he belongs in reality. I've ended the conversation by telling him that, if he truly feels that way, then he should just go kill himself right now. And that I'd see him tomorrow because we both know damn well that he's not going to follow through with any of these threats.

Any suggestions on dealing with this in a constructive way, or should I just tell him to fuck off and block him? If not for the fact he's kinda cute, I'd probably have given up a long time ago. Jsut for the record, no, this isn't someone I'm interested in as more than a friend.