"Once upon a time, two years ago," Vanitas serves back. "Xehanort's apprentice - I guess that's you - died in a training accident, and what was left went to live with someone else. That's what I know." He's not going to tell Ventus about the Land of Departure, with a defensiveness wrapped around the idea of it. Ventus isn't getting that much. Some 'training accident'. From what Ventus says, and from Ventus's continued existence alone, someone has been telling lies.

"That's your fault," Vanitas says. He was doing fine not making them until this disaster right now. He had it under control. Stop looking at him like he's a monster. He is. He forces himself not to twitch when Ventus jabs at him with a finger. Guilt is definitely a negative emotion, and he has to try and hold it's head down underwater because it's also not helpful right now.

"Fuck off," Vanitas spits. "I made it, so I'll deal with it. Stay out of it." He does feel a responsibility for it, and doesn't want anyone to become injured fixing a problem he made, especially someone who's already taken hits (who's already been 'cleaning up his mess' and isn't that a horrifying revelation), but his paler face belies the fact that this is also just a terrifying option. It's like if Ventus had declared he was going to break one of Vanitas's bones.