Why did Yang Guo miss a life?

Everything in the story comes from the mouth of sixteen-year-old fenglingdu. In the hotel, Guo Xiang and the rebellious hero opened their hearts, drank and laughed, and heard about the deeds of the condor heroes, so they fell in love. I traveled with a ghost cave in the western hills, and then I met the condor heroes. Guo Xiang fell in love with Yang Guo, just like the love story of a girl falling in love with her uncle. Uncle has accumulated age bonus, integrating experience, talent and resources. It can be said that it has everything. Yang Guo was already at the peak of a man's life, and he was also a minor celebrity in the Jianghu. What's more, he is infatuated. This satisfies all the imagination of a girl's soul mate. Yang Guo gave her three gold needles, which can satisfy her three wishes. She used two without thinking, just to see Yang Guo's face, and invited Yang Guo to celebrate her birthday in Yang Guo. At that moment, her youth solidified. There is a similar plot in "Eternal Dragon Slayer", that is, Zhang Wuji promised to meet Zhao Min's three requirements of not violating Jianghu morality. The same three wishes, Zhao Min won his love with them, but Guo Xiang didn't. If Guo Xiang traded this for Yang Guo's love, she wouldn't be Guo Xiang. If Yang Guo gave up the little dragon girl and accepted Guo Xiang, he would not be Yang Guo.