It's a little bit of both, I think? He is pretty self-absorbed in an immature kind of way, but Klarion also has a long history of authority figures screwing him over or betraying him, so in his mind, it's himself and Teekl against the rest of the world. Their own personal well-being comes first, and if he thinks that somebody else can handle a crisis, he'll ollie out and do his own thing until Teekl guilt-trips him into helping.

Name five of Shade's favourite things! Books, meals, whatever!