Pleas for one last chance fell on deaf ears.

Xehanort had renounced his position as your mentor. You were replaced by the boy you once called "friend".

Struggling to push your rage aside, you decided that this was just a minor set-back.

You would master your blade and he would beg for forgiveness, as would Ventus for his deceit.

He must have been planting thoughts in Xehanort's head behind your back the entire time.

Why else would your master break his oath?

That night you vacated the world, unknowing of the dark seed Xehanort had planted.