What caused the tragedy of loving menstruation in Lu Xun's Divorce? How did Lu Xun turn a family marriage dispute into a social tragedy?

Divorce is a short story describing the tragic fate of rural women in semi-colonial and semi-feudal society. The hero of the novel, Ai Gu, was abused and humiliated in her husband's family and abandoned by her new lover. Unbearable, she resolutely resisted, complained of her humiliation, accused her husband of oppression and abuse, and rebuked her husband's despicable behavior. However, this bold resistance still ended in failure under the oppression of powerful feudal forces. Through the tragedy of loving the ancient times, the author aims to show that although the Revolution of 1911 overthrew the feudal monarchy, it was far from completing the historical task of anti-feudalism. The rural feudal forces are still strong, and the influence of feudal ideas is still deeply rooted. Farmers, especially rural women, have not really emancipated their minds.