Dave knows better than to speak out, and to hold back the 'responsibility' and 'shitty' remarks he could be making. Dirk might not be happy with Dave's reaction, but Dave is just as unsatisfied with Dirk's remarks.

"It's complicated." where the others are concerned. Miss them? Probably, but he lived just fine with varying degrees of attention regarding anyone other than Rose in that equation and a lot of time he just hung out with Karkat because she's been too busy being aliengay. "It's not complacency." He sits up, slowly, he's not that upset that he's pitching a bitch fit about anything. "Why can't I be happy here? Because I didn't cut seven people in half and throw a moon at their first born offspring?"