Gong needed help to find it. In fact, his favorite person is Shiloh. Only when Shiloh ran away from home, the palace pinned her feelings for Xia on her, but Shiloh chose to leave for her sister's happiness.

That's why the last paragraph appeared. Gong: When I found the person I knew best and needed most, you had already left. Shiloh left! Xia's favorite person is Gong.