Well that's - ominous. He stops and turns halfway to look at her through narrowed eyes.

"Your plans don't have much to do with it, unfortunately," he says after a moment. "What the hell does that mean, 'still existed'? What's going on in your universe?"

He realizes belatedly that he's not doing a very good job of putting this in perspective for her. Maybe she'll piece it together herself. He feels too tired to give her the full explanation straight out.