Lin Daiyu and Jia Baoyu have a "wood-stone alliance". Lin Daiyu was originally a crimson fairy grass, because when there was no rain or dew, it was Jia Baoyu's predecessor Shen Ying who used dew irrigation every day to save it. Later, Xiancao cultivated into a fine body and became a female body. Because she wanted to call the police, she said that she had a favor to repay Lin Daiyu, because the waiter in Shen Ying saved herself with dew, so she wanted to save her.

Two people can't be together, the first is the need of family interests. Jia Xue's four families should support each other through marriage, so Xue Baochai married Baoyu, not to mention the "golden marriage". Secondly, Xue Baochai is very good at being a man and quite sophisticated. She is very smooth, generous and dignified, and is very popular with Mrs. Jia and Mrs. Wang. However, Lin Daiyu's sad personality, delicate mind and easy to offend people. Besides, she is thin. The ancestors said that she was "not good at giving birth, but she was afraid that she would not be blessed." Where is Baochai round, where is it good to live? Moreover, it was Wang Xifeng's bad idea. The exchange scheme directly dealt a fatal blow to Lin Daiyu and also hurt Xue Baochai.