[He definitely perks up at the mention of her leaving and time not passing. Forget ice cream, here was information! He'll wait until she's finished paying first, though, and shoots off his order after she's done.]

Vanilla and blueberry, please. [His order is a lot more modest than hers, and while he'd be commenting otherwise, there's something he wants to know first.]

About what you just said. Time doesn't pass while you're here? Are you saying that— [Wait, no, he isn't 100% sure what she's saying.] Actually, could you explain?