Springtime Affairs in a Noble Family

Cui Lingrong was a model mistress in Bianjing City, who followed the rules and regulations in her conduct.
She thought she would live a life of mutual respect with Song Shulan, until she returned home for her father's funeral and learned that Song Shulan had already married a second wife.
Her mother-in-law advised her to be magnanimous, but Song Shulan vowed it was for her future.
But one rainy night, she learned that the concubine was Song Shulan's unattainable white moonlight in her youth, and that her husband had always harbored feelings for someone else.
Therefore, in the year she was granted the title of Lady, Cui Lingrong proposed a divorce.
~
Despite the Song family's century-long history and the fact that its ancestors included high-ranking cabinet officials, they could not escape the common fate of declining fortunes.
Song Shulan was the eldest grandson. After achieving fame at a young age, he became obsessed with officialdom and was determined to restore the glory of his ancestors.
As for Cui Lingrong's first wife, she was bland and uninteresting, never overstepping the bounds of propriety. Especially in matters of the flesh, she often advised him to restrain himself. Although their life was dull and monotonous, Cui Lingrong listened to her every word, and they were able to continue living together.
So much so that he never imagined that his wife, who had always been self-disciplined and respectful, would be so radiant and charming in another man's arms, a sight he had never seen before.
Under his furious questioning, she calmly rose, revealing glaring red marks beneath her loosely draped clothes, like blooming red plum blossoms.
She retorted with a light, mocking tone, "Has Lord Song forgotten that you are now my divorced husband? What right do you have to question me?"