Major Twists & Finale Breakdown:
1. The Stalking Ex-Boyfriend Incident: Jin-ah's toxic ex-boyfriend, Lee Gyu-min, stalks her, leaks private photos, and eventually attempts a dangerous murder-suicide by speeding his car off the road with Jin-ah inside. Both survive, leading to his arrest.
2. Workplace Sexual Harassment Outcome: Encouraged by Joon-hee, Jin-ah submits hard evidence against corporate executives. The company performs a corporate cover-up: sacrificing one vice president while quietly demoting/reassigning Jin-ah, demonstrating how systems protect themselves.
3. The Breakup & Time Jump: Exhausted by her mother's non-stop abuse and unwilling to let Joon-hee sacrifice his career for her, Jin-ah refuses to move to the US with him. They break up, and Joon-hee leaves for the United States.
4. Reunion in Jeju: Years later, Joon-hee returns for his sister's event and sees Jin-ah with a new, socially acceptable boyfriend who treats her with indifference. Realizing she is still living unauthentically, Jin-ah finally breaks up with the new boyfriend, resigns from her job, and relocates to Jeju Island to open a small shop with a female colleague. Joon-hee listens to an old voice recording of her, realizes his eternal love, and flies to Jeju. They reunite in the rain, recommitting to each other on equal, independent terms.