Dressed as the Control Group, the Heroine Insists on Exchanging Husbands with Me

For no reason, Qiao Yunqing didn't know why he was transported into a book. The world in the book was created with the background of China in the 1980s. In the book, she is not the heroine, but her husband is the male protagonist, and the heroine is Qiao Sulan, who lives in the same village as her. She is just a cannon fodder control group for the heroine, a stepping stone for the male and female protagonists to lead a better life. After Qiao Yunqing passed through, he discovered that the heroine was actually reborn, and that the day before she met the hero, she snatched him away. What can she do in this situation? Of course I gave him up happily! Moreover, the heroine was so kind that she actually gave her the date of her blind date. Seeing the man's pretty good conditions, she accepted it with a smile. After her marriage, her life was prosperous, but the life of the heroine turned into a mess. She regretted that her intestines were blue...