Please analyze the love tragedy and marriage tragedy in Dream of the Red Chamber.

" Dream of the Red Chamber " was a classic work of Chinese classical novels. It depicted the rise and fall of a wealthy family, as well as all kinds of life. The tragedy of love and the tragedy of marriage were the two main topics of 'Dream of the Red Chamber'. In terms of love tragedy, Jia Baoyu and Lin Daiyu were one of the most famous love characters in Dream of the Red Chamber. The relationship between Jia Baoyu and Lin Daiyu changed from mutual attraction to mutual disgust, which was full of contradictions and pain. Among them, Lin Daiyu's early death was an eternal pain in Jia Baoyu's heart. In addition, Jia Baoyu and Xue Baochai's marriage was also a sad song. Although they loved each other deeply, their marriage was not happy for various reasons. In the aspect of marriage tragedy, Jia Baoyu and Xue Baochai's marriage was also a sad song. Although they loved each other deeply, their marriage was not happy for various reasons. Jia Baoyu's family was on the decline due to political struggles, and he was eventually forced to leave home and part ways with Daiyu. Xue Baochai had to leave Jia Baoyu because of the changes in her family and eventually married Jia Zheng. These plots all expressed the theme of unfortunate marriage and revealed the cruelty and irrationality of the marriage system in the feudal society. The tragedies of love and marriage in Dream of the Red Chamber reflected the drawbacks of feudal society and the fragility of human nature. The love and marriage in the novel were full of contradictions and pain, and the fate of the characters was also full of impermanence and helplessness.