Waiting for You to Carve Jade

As a boy, Zigang fell in love with "Jin'er", the granddaughter of a well-known violinist at the time. Childhood sweethearts, a talented man and a beautiful girl, their relationship has grown stronger with each passing year. But contrary to expectations, Jin'er was just about to reach the marriageable age, but she was spotted by the eunuch sent by the palace to choose a happy girl, and she was sent to the capital the next day. Jin'er, who had no choice but to leave, hurriedly wrote in the study "I will keep it like jade in this life, waiting for you to polish it in the next life" and left in tears. What are the causes and consequences of the story? There is no record of history, so let's take a look...