[At first, he doesn't panic. He could've known Nakarai or Ushiro - more likely Nakarai, if she talked about the other pilots. He's certainly got no sense of decorum, but there isn't necessarily anything amiss.
Waku, though - that's a prod right to his sorest spot. Why not one of the others?]
Everyone's got their losses from the lives they led before they came here. I'm sure I'm not the only one with people to remember.