[Whatever it's shaking with, Lightning can both see and feel it, and the moment the girl turns to leave, a bolt of lightning slams down in front of the Corridor. It probably won't even slow Xion down, but it's going to have to do.]

Then what? You run away and find someone else to kill you? You don't think that's going to hurt them the most? You never get over taking a life, Xion. Never.