"forgive and forget" is a great way to get stabbed in the back
Luke forgives. He forgives Kronos, sometimes, for losing his control, and he forgets the instances where he screams.
Luke forgives. Luke forgets.
He forgives the way he can feel his mind slipping out of his body and he forgets the times he can feel Kronos's mind in his body.
Luke forgives. Luke forgets.
He's gracious that way.
He doesn't forgive the way he forgets Thalia. He doesn't forgive or forget the way Kronos tampers with his soul.
That's what he remembers, when he kills himself — that's what he remembers when he gets his revenge.
He's gracious that way.