What did Changfeng experience, and began to dislike her sister Moran, unwilling to associate with her? Cynicism is enough to see the disgust for Aunt Lin. Her dislike of Moran is not because of her concubines, after all, she is very kind to Ming Lan. She hates Moran's dirty tricks. The Liu family not only helped Changfeng, but also won Changfeng's love. Her preferences will certainly affect Changfeng.
Second: Moran used disgraceful means to seek his own marriage. Although the Sheng family kept silent about it, it spread all over the world. Especially in ancient times, when entertainment projects were limited, scandals and new things of any family would spread throughout the circle with lightning speed. And which girl has a scandal will also rise to the problem of parenting in the whole family, which will bring trouble to other girls' marriages. For such a younger sister, Changfeng avoided it, not only because of disgust, but also because she later gave birth to a daughter, fearing that such an aunt would delay her daughter's future.
Third: Moran will not die after marriage. Aunt Lin didn't die so early in the book, but was forced to eat lard bibimbap three times a day and do manual labor. Later, she became a fat and sour country woman. Moran went back to her mother's house after marriage, often nagging in Changfeng's ear, trying to get Aunt Lin back. Changfeng finally went to the Liu family, with a good future. She has a daughter and a happy family. Shengji also gave him a good look, why bother. Moreover, Aunt Lin did something that people looked down upon. As a man of feudal society, he can't see the past.