Oh man, they talked about me? What did they say? I mean, if Dave said it, it was probably totally wrong and meant to slander my good name, but I still want to know.

[Either way, it makes him feel warm and fuzzy that his friends have been talking about him.]

Oh, and I wouldn't worry about Karkat. If he yells at you a lot, he probably likes you. He's an alien. It's just his culture.