[Nods at her words -- it's how he looks at it, too. He was here, but it wasn't him. That 'him' no longer exists. In more ways than one.]
[The words, though, catch his attention - and he muffles that twist of fear at more of these blatant displays of magic. That fear won't ever show on his face, but it sets him on edge when he's already feeling rattled and restless.]
[He's more curious about her reaction than the words themselves, of course. That's his job: to observe people, to know people. The flinch is obvious. The looking away is obvious. The distinct 'lack' of reaction is obvious. He's not about to press it, but...]
Hey... [it's not a prodding, but a prompting. If she wants to say something, she can. Otherwise, he's stepping a bit so he's between her and the secret. There. Don't have to see it anymore. Doesn't change that they both saw it, but it's better than nothing.]