My Wedding, Your Biggest Regret

On the eve of their wedding, John discovers his fiancée remains unrepentant, continuing her affairs with other man. Disheartened, he returns home to a nightmare: finding her with a lover who insults him, while Anna watches coldly from the sidelines. Enough is enough. John severs all ties with her and impulsively marries the girl who had always secretly loved him. Only after the wedding does Anna regret her actions, realizing John was the one who truly loved her. She begs for a second chance, but the tables have turned—it's too late, and John is gone.