Kyle has gone through life tiny, ignorant to a fault, vulgar and unlettered, ridiculed, people making fun of and laughing at him.
It's not unusual for such people to strike out at the world, to hurt others before they can hurt him. Kyle flees and tries hard not to accept anyone who doesn't feed his ego or provide monies and gifts to him or people he can use... like his family and Casey.
He's a loser and a bit of a freak, so people, when they get to know the real person not the stupid and silly act he puts on, are repulsed by him and they try to stay away from him and he's OK with that. His world where he feels some comfort is primarily online. It's pixels and comments and little of substance or reality. And anything negative is blocked or deleted......and when he can't, as at 'X,' he's in panic mode, angry and completely off the hook.
He's become an angry bitter elf who drinks to excess and is probably an alcoholic. It's surprising he hasn't developed full blown dissociative identity disorder and had a complete break with reality.
Hmmmm..... this creation of so many sock puppets could be a step in that direction.
His interior discussion and his creation of 'Peter' (tall and brave
) becomes an invisible friend and online defender....and only he sees 'Peter'.
(And it's probably been hard for him to see his peter for most of his life. ~ba dum tssssss!~ )