Even if he was only mid-20s before, he'd have been, like, 40 when she was hoping he'd find her.
Maybe one of the local gods they mentioned. Possibly the one that reincarnated them.
That moment of realization is one of the things I'm most anticipating in this show.
Lol, why would she need to figure that out? As soon as they report the body to the authorities, he'll be identified.