If Linden is frosted, Karkat's a burning coal.

"Nope!" He flings up his hands, and despite the book in one manages to raise both middle fingers. "Take that apology and sit on it, nookwipe! I'm out."

And finally he turns to limp off to the elevator. He's going to go order some kind of extravagant sundae from the restaurant downstairs if Linden lets him go. In his judgement he deserves it after this mess.