Stockholm Syndrome.  An abused child will often try to placate the narcissistic abusive parent, hoping that things will change and the parent will finally love them. Sometimes something happens that finally snaps the child out of it, the abusive parent goes too far and the abused child finally realizes that no matter what they do, they will never measure up, be good enough, their parent will never love them and accept them the way they want, but will just be content to keep on using them to their own ends.  They finally see the parent for what they truly are, and not what they wish they would be.  Hunter is at about the right age for this realization, that despite continual trying, having a family of his own, he's just never going to cut it with mom and dad and it's never going to change no matter what he does. That's how it goes with familial abuse:  some sink (continue the cycle upon their own family) some swim (realize they could never treat their own kids the way their parents treated them and try to break the cycle). In a narcissistic triangulation, Beau was the Golden Child (clearly) and Hunter was the Scapegoat.  Maybe he's had enough of being used by Pops. Good luck Hunter!