The Legend of the Condor Heroes is a classic. What is the ending of Guo Jing and Huang Rong in the book?

In fact, Huang Rong, Guo Jing, should have died of depression after the fall of Xiangyang. In history, Xiangyang was not broken by Mongolian troops, but Lv Wenhuan opened the city gate to surrender. If Guo Jing and his wife were in Xiangyang, they would definitely not let Lv Wenhuan surrender in Kaesong. Therefore, it is certain that Guo Jing and his wife had a premonition that Xiangyang would be difficult to keep, so they left Xiangyang while the Mongolian army did not arrive, and they were busy building the Eternal Sword and went with Tu Longdao. At this time, the Mongolian army suddenly arrived. To know that the communication in that era was no better than now, when the news of Lv Wenhuan's surrender came, it was too late, so the two men died of depression after entrusting Tu Longdao and Eternal Sword. As for the truth of what extinction said, it is conceivable that her brother Gu Hongzi was obviously angry but had to blame Yang Xiao, and Ji Xiaofu was obviously killed by herself but also blamed Zoroastrianism. How high can the credibility of what she said be?