The Male and Female Leads Are No Longer Together

I am ‘Villainess Bellita’ from a romance fantasy novel. I transmigrated into a character destined for a gruesome death—one who stalks the male lead, torments the female lead, and meets a horrific end. If I want to live, there is only one answer: break off the engagement with the male lead before the story even begins and leave this city. After a meticulous plan, I succeeded in breaking off the engagement, securing a diamond mine as alimony. … I thought I was finally alive—but just when. Along with the shocking news that the male and female leads have broken up, the male lead who used to despise me confesses his love, the female lead adores me like a savior, and the man destined to kill me is flirting with me. On top of that, a character who wasn’t in the original story even says he will stake his life on me. Yet, the original story has been turned into such a mess… what is this unfairness where the events leading me to my death are still unfolding exactly as they were? Amidst this topsy-turvy original story, can I… survive?