Billie's silent for a moment, lips pursing into a thin line rather than frowning outright. It's not like she needed to be reminded. That hasn't been that far from her mind this entire time, while waiting out the Long Night, cleaning up after it, trying to stay busy and not dwell too harshly on what he told her.

"You were going to have to tell me someday," is what she settles on saying to that, stepping away since it's obvious he isn't about to collapse. That's it, that's all. She turns stiffly to walk back to where she abandoned her broom, apparently choosing to carry on the age-old tradition of not discussing it further.