On the subject of the other father being sort of terrible for disowning his daughter too, y'all forget shit too easily. Go back to the marital fight over that one dumb ho that the MC didn't even want to participate in. Northern Guardian sounded like he kind of wanted his daughter to just have a happy, normal life instead of getting involved in political power bullshit. Even she is possibly misunderstanding him currently because everyone knows he's strict anyway, but that whole thing may have been his way of caring for his daughter by allowing her to be with the one she actually likes despite him being some country bumpkin commoner.