For her, that period of life was just an experience. When the time comes, she is destined to leave, and all the disturbances during this period will be forgotten, leaving only a lonely moon to keep her company.
For him, that relationship was like a burning flame, lighting up his life and allowing him to taste all the joys, sorrows and joys of the world. He made a vow to Mingyue that he would never be separated from her in all eternity.