He wished he could hate somebody else.
Anybody else.
He would have even accepted hating Tavros over the kismesis he had taken into his quadrants.

Karkat's eyes narrowed at his reflection in the cracked mirror.
"You disgust me."
His fist met the middle of his mirror, the crack worsening under his knuckle.
"You failed everyone."
Once again the crack worsened and his knuckle had began to bleed the candy red he hated so much.
"You fucking mutant."

The mirror shattered under his third punch. His breathing had began to pick up in utter rage.
"Asshole."

"Hello, Karkat. Are you quite alright in there? You have been in there quite a while." Kanaya had knocked on his door before opening, hand quickly shooting up to cover her mouth at the sight before her.

"I'm fine." Karkat had hissed out, cradling his hand to his chest, the horridly bright substance now staining his skin as well as his sweater.
"If you are willing to listen, Karkat, I will suggest that maybe a kismesitude is not the quadrant you should have with yourself." The female murmured, meekly stepping closer to look at the others hand. "Maybe you should not have a quadrant with yourself at all."

Karkat looked away from her, his eyes narrowing at a shard of the mirror. "But I hate-"
"Yes, we are all aware." She quickly interrupted, earning a growl from the significantly shorter troll. "But I do think that you should possibly reconsider and look for hatred elsewhere. Maybe Sollux? You seem to dislike him greatly-"
"Me and that lispy dumbass do not have black feelings for each other." He hissed over, stealing his hand back finally. "I'm fine being a self-loathing asshole, Kanaya. Now leave."

After she sighed and actually left, Karkat picked up a shard of the mirror.
Look at him, the mutated colour of his blood was everywhere, he was glaring at himself of all people he could be wasting his time hating.

He wished he could hate someone else.
Karkat just couldn't hate anybody more than he hated himself.