After Dressing up as a Villain, She Just Wants to Follow the Plot

Lu Qiuqiu accidentally bound the system into a BE aesthetic novel and became a vicious female supporting character who abused the heroine since she was a child and likes the male protagonist. In order to smoothly connect the hero and heroine, save the collapse ending without the time traveler successfully saving him, and get the highest points to go back and be reborn, Lu Qiuqiu decided to take the risk first and kill the villain to the end. She thought that the heroine, who had been abused by the original owner for several years, would continue to hate her, and then with her help, she would gradually move closer to the male protagonist. I never thought that the female protagonist was completely different from the original work. Not only did she not hate her, she actively accepted her food, and she was not as difficult to get along with as other time travelers said. After she changed her strategy, the heroine stuck to her everywhere and even became a good sister with her without any precautions. Later, the heroine didn't even need any guidance from her, and she obediently agreed to marry the princely hero. There is just one condition, I hope she can accompany him to marry him. She can have sex nearby, and can further promote the male and female protagonists, and she has status and money, so why wouldn't she do it? Just as she was accompanying the heroine and marrying her good friend the prince as the titular princess according to the plot, she felt that things were developing more and more in an incredible direction. Not only did the heroine pester her more and more, but every time the man asked her to pretend to have sex with her, the heroine who knew about it would insist on sleeping between them. Even before the heroine and the hero went off to war, the heroine was drunk but called her name, entered her room and pressed her against the wall, kissing her until she almost cried. What's going on? Did the heroine kiss the wrong person? Or did she break the heroine? But this is a romance novel, and doesn't the heroine love the hero deeply? Otherwise, why would you rather marry a prince than be scolded and bullied as a child? -----I just want to follow the plot and travel through the book as a female partner*Hakuri's black-bellied novel heroine. Screenshot taken. Intention: Persistence is victory.