Yu Mumu had gastric cancer, and she wanted to tell Shen Chenyuan, but before she could tell him, she learned that Shen Chenyuan wanted her to donate her cornea to his Bai Yueguang, but she delayed it again and again, and later missed the best time for surgery, so she willingly donated her cornea to Qi Yue.
She left, on the endless sea.
Purpose: Torturing your wife is a temporary pleasure, but chasing your wife has no way out.