Go to HR. Not with a scandal, but with a statement. "Sarah and I are in a consensual romantic relationship. We are not in the same reporting line, and we will keep our personal lives out of the office." This protects you. If the relationship sours, Sarah cannot later claim you harassed her, because there is a record of consent.
The intersection of work relationships and romantic storylines is a common reality in modern professional life, with recent surveys indicating that nearly have been involved in a workplace romance. While these connections can lead to increased job satisfaction and personal happiness, they also introduce complex layers of ethical, legal, and social challenges. The Evolution and Prevalence of Workplace Romance
Most fiction ignores realistic consequences. In reality, dating your direct report is a lawsuit waiting to happen. Shows like Severance or The Office (Jim & Pam’s early seasons) do this well by showing the awkwardness and risk. Rom-coms that skip this feel lazy.