Walking beside him even when someone's an ally probably makes them feel the same way, unhappily at a false ease. Even between Dabi and him, there's always an underlying possibility that they're about to explode.

Luckily this isn't the same with her, at least not where fire and decay are concerned. When she pauses, he does too with his hands still in his jacket. A little worn in places, but well cared for even in this place. "You always were one of the smartest ones." Not smarter, not smart, smartest. He tilts his head, eyes curiously looking on as she shops. "Now my curiosity is if you're being serious, or if you're humouring me because of who I am."