Cannon Fodder, but Falls in Love with the Protagonist

Yu Su woke up. I found myself the cannon fodder supporting character in a romance novel. Now her boyfriend who is devoted to him is the protagonist in the novel. Later, because he didn't care about Gong and loved to make trouble, he always hurt the protagonist Gong's heart and gave the protagonist an opportunity to take advantage of him. In the end, he became the ex who was kicked out by the protagonist. "..." Yu Su couldn't bear it. Even if they wanted to break up, he would have to kick her out. He doesn't want the reputation of a scumbag! * Yu Su had a brilliant idea. Anyway, this world has arranged for the protagonist Gong and the protagonist Shou, and sooner or later they will break up. From now on, he will attack the protagonist well and fight hard, letting everyone know how much he likes the protagonist's attack. In this way, if the protagonist changes his mind and the protagonist is reconciled, won't he stand on the moral high ground and be able to criticize these two people unscrupulously? * Yan Weizhi found that his boyfriend had changed recently. He used to play tricks on him, but now he was very reasonable and would not pester him or tell him anything. He always pushed him away. Yan Weizhi felt guilty, thinking that he had neglected his boyfriend, which made him become like this. So Yan Weizhi spent all his spare time with his boyfriend. * Seeing the time passing day by day, Yu Su found that Yan Weizhi and the protagonist had no signs of getting along. Not only that, this man is getting kinder to himself now. What's going on? Are you still breaking up? Can he still stand on the moral high ground? Intention: The theory of awakening is not credible!