"Understood."
Tap. Symbol.
"Are you the same person I first met who looked like you and introduced herself to me as Asmodia, in the sense of having not been replaced in body or mind by some other person who existed separately from the previous Asmodia when she first introduced herself?" That should get most of the doomy cases he's actually worried about, while permitting the one where her mind or body went backwards in time by however long, in which case yeah they could have legit temporal shenanigan reasons to desperately cover that from him, but should also probably know that he did think of the possibility.