this is based on a personal AU of mine where Zim and Dib eventually realize they're both social outcasts and that Zim's mission was a lie so they decide to become friends and a while later Zib moves into Dib's attic and tries to be a better person (the tallest probably end up on earth and are kind of there, Dib probably yells at them for stealing his soda at some point) --- this took forever