Certified Revenge Novel

Protagonist is wrongly accused of murdering her ex-boyfriend, despite having no involvement in his death. Though she had expressed violent sentiments toward him via text messages before their breakup and admits to having an volatile temperament, she maintains her innocence. To everyone else, the ex-boyfriend was a saint, making her the obvious suspect. She finds herself detained at the police station for questioning regarding a crime she did not commit. Adding to her troubles, his alleged fiancée is determined to seek revenge against her. What initially seemed like the worst possible scenario takes an unexpected turn when she encounters the detective assigned to the case. Intrigued by this new development, she decides to play along and see where the situation leads, suggesting a potential romantic interest in the detective that might complicate the investigation further.