[As long as she doesn't say anything, they can act like it didn't happen.]
No, it wasn't. [He's only one person and can only do so much. He knows that intellectually, but guilt doesn't listen to intellect.] He is, yes. You were lucky to find him.
[Chekov has led them to the beach. The illusion of open space always makes him feel safe; it was the best destination he could think of.]