Imagine a human seeing another human just collapse, ge a stroke and go in a coma for a short time. It's lile that for Grave. a computer sees another one faint. Grave's entire purpose is to protect. So he has a fear of other's getting hurt.
Me: He was my son ever since the greek era
He's been the god of chaos and heir to the throne for God ever since
then Susie (Kris' wife) if kris doesnt want/cant be, Then galuez, who if he doesnt want/cant, he can gjve it to anyone he likes.