@aberdeus nope. too out-of-the-blue for that (no prior foreshadowing of those gems being anything that can do that).
Though it would be funny. Cause then the wife has cheated on mc with some other guy to give birth to the hero, while mc never had another woman. They never divorced, so remarrying while the other is still alive is probably considered that. And if you claim that her new life is equal to being amnesic, then her accepting mc at first meeting while also being a reincarnation of his wife is too much of a coincidence (pick one or the other ).
Though it would be funny. Cause then the wife has cheated on mc with some other guy to give birth to the hero, while mc never had another woman. They never divorced, so remarrying while the other is still alive is probably considered that. And if you claim that her new life is equal to being amnesic, then her accepting mc at first meeting while also being a reincarnation of his wife is too much of a coincidence (pick one or the other ).