Fuck, you don't know why you're doing this. He's across the hall, or down the hall, or up in the lab, or --
Point is, he's somewhere close, and you're wasting time hacking away at a computer and a keyboard instead of sitting down and looking your best friend in the eye. He's going through some shit, and you should, y'know, be there for him. You're doing a shit job, though. You're aware that you're doing a shit job. You're aware that the best thing you could do for either of you right this second would be to go find where he's holed up and challenge him to strife. Or drag out his terribad movie collection.
But you're not going to do that, because the idea of looking Karkat in the eye right now makes you nervous as fuck. All joking aside, he's right, and you're beginning to come to the conclusion that you really are in denial.
You've got it, and you've got it bad.