At least he's being honest. At least he isn't telling her he'll come back when she has a pretty good feeling that he won't.

But her eyes get all wide at the whisper. It's a secret! A really cool secret and he's breaking rules and it makes her feel special. She doesn't get that feeling a lot. So she shifts the tiniest bit closer and decides that it's okay if he doesn't come back, because he showed up in the first place! And he taught her how to let herself out of a scary place. And maybe things will be just a little bit better when he leaves.

"I won't tell. Promise!" She can be sneaky. Very sneaky! The most sneaky. "Okay, okay, read the story! I don't got all day!" And that was the tiniest eyeroll of all time.