In Jin Yong's novel The Condor Heroes, why did Yang Guo separate from the little dragon girl 16 years?

In The Condor Heroes, the love story of Yang Guo's little dragon girl can be said to be the most tortuous couple in the Condor Trilogy. From the beginning, they didn't understand each other because of their identity. Later, Huang Rong tried every means to obstruct and break through all kinds of obstacles, and left without saying goodbye to Little Dragon Girl 16 years. Why do two people who love each other suppress the lovesickness of 16 years?

Regarding the difference of 16, Yang Guo didn't ask her anything after the little dragon girl met Yang Guo. The little dragon girl replied, "I know you have deep feelings for me. In just eight years, I can't make up my mind to dilute your hot temper. Alas, I didn't expect you to jump after 16 years. " Little Dragon Girl thought her poison was unsolvable at that time, so she hoped to dilute Yang Guo's feelings for herself through time.

But for most book fans, this explanation is not very convincing. Many people speculate that the key reason is the night between her and Yin Zhiping. There were too many coincidences. In Zhong Nanshan, Yang Guo stood up for the little dragon girl, and let the little dragon girl turn this former apprentice into a man who can be entrusted for life. And that night, the little dragon girl happened to be stabbed in the wild. When Yin Zhiping started, she just blindfolded her. So when things happened, the little dragon girl acquiesced to a certain extent, so she didn't resist or call for help. Because she thinks Yin Zhiping is Yang Guo. But afterwards, the misunderstood little dragon girl thought she had paid so much. When Yang Guo will marry her, Yang Guo's side is puzzled and hasn't reacted yet. The little dragon girl has left angrily.

Although Yang Guo didn't know why the little dragon girl left angrily, Yang Guo was anxiously looking for her everywhere, and they met in the valley of despair. Yang Guo was poisoned by GongSunZhi because he lost in the contest with GongSunZhi. The little dragon girl got sick many times in the process of leaving, which led to poisoning and entered the internal organs. There is no cure, but Yang Guo knows that her aunt is going to die. She doesn't want to take the antidote and wants to die with Little Dragon Girl. In order to let Yang Guo live a few more years, the little dragon girl pretended to have just left, so she left a message and agreed with Yang Guo that "we will meet here in sixteen years".

? These reasons are why Miss Xiaolong and Yang Guo are 16 years old respectively.