In memory of Isabel.
Zim was working on his newest project. He was attempting to bring speech to a young pony, but was interrupted by a loud knock at his door. Irk! He cursed, he was almost done, and he couldn't risk not answering another knock, those cookie shaped scars on his back were enough to get him up to his upper dwelling.
"Hello?" he asked as he opened the door, and an unpleasant surprise was waiting for him.
"DIB-WORM!" he said angrily, "You are interrupting a very important-" but Dib interrupted him.
"Zim, I have to tell you something," He said seriously. "I'm leaving."
Huh?
"My dad got a new lab in Ontario," He saw the confused look on his enemy's face, "That's in Canada." He added helpfully.
"So, this affects me in what way?" the Dib was just wasting his time.
"We're leaving in an hour, and I won't be here to fight you anymore; so I came here to ask something of you, instead." He sounded almost wistful.
"Well, go on with it, then!" his patience was slowly receding. Dib just rolled his eyes. "If you're not going to take this seriously…" he started to walk away.
"Wait!" He was curious of what the creature would ask of him, and it would not do to deprive himself of the right to deny him of that. "Are you going to listen?" the (not like he would ever admit it) large-headed boy replied.
"Maybe"
They glared at each other for a while. Dib was the first to speak;
"I'm not going to be here to fight you anymore," Even though the tallests told Zim of his exile long ago, Dib still thought he was there to take over the earth, "So, I want you to tell your leaders that Earth will be ready for an Invasion, so they shouldn't even try."
He was about to speak, but recognized this as a young boy's desperate last attempt to save something he cares about. He just nodded at the human.
In the short time since he had first came to Earth, he and the Dib had acquired a sort of professional relationship with each other. Yes, they despised each other, but there was a sort of mutual respect that could not be extinguished, no matter how many rude hand gestures they shot at each other.
"I hate you," Dib said looking back out of the door, smirking.
He smirked back, "I hate you too."
They turned around at precisely the same time, and strolled towards their different ways; Zim to his new experiment, and Dib to his new home, neither of them forgetting their last words to each other.