....but if you take a step back and think about it, or take a break from the manga and come back to this.... this is just creepy.
Even if she's his reincarnated wife, a grown as man is basically flirting with a little elementary school girl, treating her as his wife.
This can only end bad, they have no future, they can never be together unless he can somehow adopt her.
Wouldn't it be better to move on and go with that new girl who's interested in him?