He is right to trust her because she would never, ever, under any threat or circumstance joke about what just happened in the entryway. She's just doing what she does, what they do, because it's been so, so long since she could.

And of a similar vein, she'd never want to let him down, in any way.

Carol starts to say something, but before any bit of it can escape she loses the words in a wide yawn. Who would have thought kitchen duty would make her tired after all the running around and sleepless nights they used to have?