The imperial concubine is a joke.

Xue Baochai's mind is comparable to honeycomb briquette. She tried every means to get what she wanted. If someone tries to persuade her, she will try her best to get it back. If she couldn't get it back then, she would even get it back with interest later. Baoyu praised Baochai as Yang Guifei. In fact, he wanted to say that she was beautiful, but Baochai thought it was a disguised saying that she was fat. Besides, Yang Guifei's private life is chaotic, so this metaphor makes Baochai very angry.

First, the speaker was careless, and Baochai thought Baoyu was saying that she was fat in disguise.

What women care most about is clothes, looks and posture. If modern people are ridiculed by others for being fat, they will immediately refute it, especially in ancient times. Since ancient times, women's love for beauty has been a common problem. Although Yang Guifei is a beautiful woman, she is also notoriously fat, but at this time, women with graceful figure and light posture are popular. Baoyu's description of Baochai as Yang Guifei shows the fact that Baochai is getting fatter. How can a person with such a good face not be angry when he says this in public?

Second, as we all know, Yang Guifei's private life is chaotic, so Baoyu will definitely be unhappy when he said this before Baochai got married.

Although the love story between Yang Guifei and Tang Xuanzong is widely circulated, the rumor that she once married Tang Xuanzong's son is true. Ancient women were more traditional and always believed in treating such unruly people. Although she was one of the four beauties in ancient times, she had a bad reputation. Baoyu compared Baochai to Yang Guifei to satirize the chaos in her private life, and her reputation is above all else for an unmarried girl, so Baochai was very angry with Baoyu's indiscretion.

Third, Yang Guifei was finally sentenced to death at the Ant Station, with a bad ending. Baoyu boasted that Baochai was Yang Guifei, so she naturally thought much.

When Yang Guifei was alive, she did enjoy all the splendor, but the final outcome was not good, because her beauty was taken care of by the Anshi Rebellion, which led to the Anshi Rebellion. In order to save the country, Emperor Xuanzong of the Tang Dynasty put Yang Guifei to death during his escape, but even though she was envied by the world, the ending was tragic. The thoughtful Baochai must have thought Baoyu was implying that her ending would be as tragic as Yang Guifei's, so she turned her face on the spot.

In fact, Baoyu said Baochai was just a joke between friends like Yang Guifei, simply to praise Baochai's charming appearance. There is no other meaning, but Baochai, who thinks too much, doesn't think so, and she is angry with Baoyu.