There are many reasons: First, she is a little ... angry. According to modern medicine, illness has a lot to do with her mood. Second, according to the needs of the plot of the characters in her works, according to her prototype, the crimson pearl grass next to the Sansheng stone is inherently fragile. Third, due to political reasons and feudal society, she died of depression because she could not combine with Baoyu. Baoyu combined because of political reasons and family reasons!

There seems to be no political reason, I didn't expect it!

At that time, people in the society were indifferent and intrigued, fighting for power and profit at all costs, so no one but Zijuan would help her. It is hard to find a bosom friend, so I will be depressed in the end.

As an old lady who loves her (Shi Taijun), her personal relationship is exactly the same as Baoyu's, but Mrs. Wang doesn't like her infirmity, and Wang Xifeng will identify with her ancestors in order to please them, but every son gives the impression of being aloof and arrogant, which is not as good as Xue Baochai's, so he will also feel depressed about his interpersonal relationship!