"What?" He blinks at her behind his sunglasses, then twitches back from her and claps a hand to his cheek, looking torn between horrified and embarrassed. "Oh dear. I'm sorry. You shouldn't have had to see that. Let me just, er, patch that up. I'm very sorry."

Because of course it's his fault she's seeing his not-properly-human self, and it deserves to be apologized for.