Long story short. You were a powerful Immortal, and so you helped MK and Wukong with defeating Lady Bone Demon. What went wrong? Simple. MK caughted your attention from yelling your name and Lady Bone Demon brainwashed you while you weren't focused. . . And MK lost his staff-

You and Macaque were enemies, but he still wanted to help MK...and you.

"That staff better be worth it, MK!" He shouted, as he sprints towards you. Knowing damn well you are far more powerful than him.