I guess there's no win-win in this situation, because she's two years old but is actually mentally older, way older for what we can deduce, and he's older than her physically but not mentally.
This is so confusing, how is it that she doesn't know the killer and her husband are the same person after seeing him? Does he use some kind of magic that make people unable of recognize him when he's killing or something? And the name thing is strange too.