Explain what.
This is just a guess from me:
The grey haired dude said that if you force someone from the realm of consciousness it can make them go crazy, Glunns heritage prevents that, but something went wrong and the emotional ties to Ennid were severed.
He still remembers everything but the feelings behind it were removed.
Oh that’s exactly what happened. Because of the suspensions he had that one scene, it greatly affected his psyche.
Growe had to link his consciousness with Enid's because Enid wasn't waking up after casting the spell to make Growe an adult again. While they both were unconscious, Seth (the gray haired mage) suddenly severed the connection in order to to wake Growe up to deal with the attackers. Growe's feelings for Enid accidentally got left behind in Enid's half of the consciousness world. Growe's personality had changed a lot after he met Enid, he learned humanity and empathy because he developed feelings for Enid. Without those feelings, he goes back to being a psychopath
Guys I'm confused, please explain to me