The journey to the West is currently the most important affair for Buddhism, and as the primary planner of this mission, Guanyin naturally pays constant attention to matters concerning the journey.
Moreover, Guanyin wanted to thoroughly enjoy a drama of her own creation.
When testing the Zen hearts of the four saints, she played along with Zhu Bajie for a few days; in the end, Guanyin suffered a major loss at his hands, losing all face. Naturally, Guanyin sought to take her revenge on Zhu Bajie.
Why not, if she could take her revenge and add another difficulty to the journey West?
Indeed, as Jiang Liu had thought, Guanyin used him as a template to design another plot that was almost identical.
What Jiang Liu didn't know was that his affair with Gaoyang had also been meticulously planned by Bodhisattva Guanyin all along.