In "The Legend of Zhen Huan", King Guojun has a particularly likable personality, Yushu is windy and talented, gentle and infatuated and both civil and military, respectful and forgiving, how many single girls will never forget when they see it, among them, the most famous is the daughter of Peiguo Mansion - Meng Jingxian. At the same time that Huanbi used the little statue to give marriage, Meng Jingxian couldn't sit still anymore. "When I saw the prince, I mistook my life", Meng Jingxian only saw the king of Guojun once from afar many years ago, and since then, "I don't ask about the prosperity of the world, just ask for the stupidity in my heart." Meng Jingxian's only wish in this life is to marry the king of Guojun, as the father of the three dynasties of the old Pei Guogong, put down face, go to the emperor, and finally seek the position of side blessing for his daughter. So, Huanbi and Meng Jingxian married into the Guojun Wangfu on the same day, and both became the Fujin of the palace. It stands to reason that Huanbi and the prince have known each other for many years, and Zhen Huan has a special request (to inform the prince that Huanbi is his own sister), even if he wants to have a round house, it should be Huanbi first, why is Meng Jingxian pregnant first?
After I rewatched "The Legend of Zhen Huan" n times, I finally found the clues. 
Meng Jingxian found the clue
After Meng Jingxian entered the palace alone, she specially visited Zhen Huan. Meng Jingxian first asked Huanbi, and after learning that Huanbi went to Princess Haoyue, she said that Sister Yuyin likes children very much. Then, he picked up the teacup again, sniffed it lightly and put it down, praising the tea in Zhen Huan's palace for being so fragrant, but he couldn't drink it. Zhen Huan was stunned for a moment and asked her if she was unwell. At this time, Meng Jingxian said something big enough to shock everyone's jaws in the room, she was pregnant. 
As we all know, the only person King Guojun has ever loved is Zhen Huan, and it is Huanbi who has known him for several years, but why did Meng Jingxian get pregnant? Looking at King Guojun's previous style of doing things, he shouldn't be a casual merry prince. Just when everyone was still surprised that Meng Jingxian was pregnant, what she said next shocked everyone's hearts. Meng Jingxian said: Since the concubine married into the palace, I have always heard that the prince has loved Yuyin's sister for many years before she was included in the palace. 
Zhen Huan said: Yuyin has a deep affection for the prince, and naturally, Fujin is the same for the prince. Meng Jingxian shook her head and said: The prince only has sympathy for the concubine, and only the concubine herself knows how the child in her womb was obtained. But today, the concubine found that Yuyin was also working so hard to do what she liked, if the prince was really as rumored by the outside world, and Yuyin's sister was in love, why did she have to work so hard to please. After listening to this, Zhen Huan told Meng Jingxian a sentence: Suspicion is easy to give rise to dark ghosts. 
Who knows, Meng Jingxian was uninteresting and continued: Now that the concubine is the person next to the prince's pillow, there are many things, except for the person next to the pillow, outsiders can't see it. These words are undoubtedly telling Zhen Huan that he already knows that the person he likes is not Huanbi. Since it is not Huanbi, then that small portrait will naturally not be Huanbi. As for whose it is, everyone knows it. At the same time, she is also threatening Zhen Huan, as the pillow person of King Guojun, she is willing to keep this secret for him, but she should not be regarded as a fool, let alone try to hurt the child in her belly. 
King Guojun will calculate
So when did Meng Jingxian find out about the affair between King Guojun and Zhen Huan? In addition to the subtle observations on weekdays, what finally made Meng Jingxian sure that what she suspected in her heart should be that after King Guojun took Meng Jingxian into the palace to greet the emperor, she met Zhen Huan and Concubine Jing in the harem. Zhen Huan's true feelings after seeing King Guojun can be seen, not to mention the extremely smart Meng Jingxian, even Concubine Jing, who loves to raise turtles, can also see it. 
Concubine Jing, as a united combat battalion, naturally would not say it, but Meng Jingxian would not let go of this opportunity. After Meng Jingxian found out the clue, she used the truth as a threat to "get drunk" King Guojun, and after learning about Meng Jingxian's thoughts, King Guojun made a plan and took advantage of the situation to show "loyalty" to Meng Jingxian's child. originally thought that Meng Jingxian was a well-known daughter, and with her talent and conduct, it was only a matter of time before she could get the favor of King Guojun. But after her conversation with Zhen Huan, she found out that people are all the same. For the sake of love, no matter how kind a woman is, she will be jealous, calculating, and unbearable. 
In order to get love, she dared to run into the palace to ask Zhen Huan, then she naturally dared to ask King Guojun. Imagine what King Guojun would do in order to protect Zhen Huan after learning about it. In this way, it is not difficult to explain why King Guojun, who has an amazing amount of alcohol, was drunk and lost by the soft and weak Meng Jingxian. This child is to block Meng Jingxian's mouth, and it is also the name of King Guojun to the Peiguo Mansion. Because only by stabilizing Meng Jingxian and Pei Guogong can Zhen Huan be saved. 
King Guojun's love for Zhen Huan is undoubtedly the purest, for Zhen Huan, he can not even want his life. In order to protect Zhen Huan, in order to prevent Meng Jingxian from doing things that are unfavorable to Zhen Huan, King Guojun can only compromise with Meng Jingxian and play the emotional card. In this case, giving Meng Jingxian a child is to give her a reassuring pill, and it is also the best thing to do. Climb the big tree of Pei Guogong, in case of the East Window incident one day, Zhen Huan may still have a ray of life. 
Conclusion:There is a saying that goes like this: "If you really like someone, you don't think too much about what you can get, but you think about what you can do for the other person." "Whether it is King Guojun's love for Zhen Huan, or Meng Jingxian's love for King Guojun, or Huanbi's love for King Guojun, it is also a tragedy under the product of the times. In the royal harem full of calculations, although love is precious, when it comes to love, you will lose, for example, "pure love God of War" Concubine Hua. **From the Internet, infringement deleted——