Ever since Dib was small he always beleved everything he was told, or more the stuff an idiot would believe. Like when the other kids at school told him you could put a dime on the rail road tracks and the next train to go over it would fall off the tracks as well as perfectly squish the dime. So it was perfectly understandable when he started believe in aliens and the paranormal. So he became the outcast in the world. The one with no friends or anythhing, even though his father was famous. In elementary school, one of the aliens he had warned everyone about came to earth poorly disguised a student. Too bad people in the cty were retarded and wouldn't notice an alien if one were to walk up to them nakid and scream "IMMA ALIEN! IMMA EACHU!" Dib was the only one who noticed but, of course, he was pracically invisible to everyone so no one believed him.
Zim had come to earth to destroy it. Thinking it was a mission from his Tallest, but it was just a lie to get him out of the way. He found out around the time he started eighth grade and dissapeared. He came back a little after Dib started tenth grade. He acted like he still wanted to to desstroy earth but so far he hadn't tried anything. He just went to class and listened to his maroon ipod all day. He did manage to pass all his classes fairly well. He lost the irken uniform and started wearing tight, black jeans, a purple and black stripped shirt, boots with tons of buckles, and a dark red studded belt that hung loosely around his hips. He didnt talk much, only occasionally to Dib but only to insult him.
Dib was basically the emo/punk kid of the school. He wore tight, black, hip-hugger jeans, small, tight black and grey shirts, a black, skull studded belt hanging from his hips, and black and red suspenders hung from his waist doing nothing but sway as he walked. He had his head phones around his neck, constantly blaring with different rock and punk and music. He payed no attention to anyone, barely studied and kept a B average. He hardly noticed Zim anymore, not even when he throw some stupid insult his way. He half wrote poems and stories. He would start but never found the inspiration to finish. He more or less gave up on the paranormal. He knew aliens existed, obviously, he just didnt care. He had no will to protect earth anymore. He gave up a little after Zim left. His father and Gaz left too.
So Dib and Zim ended up in all the sae classes and never said much. Dib was too nervous to talk to Zim anymore anyway.