Really Sorry

진짜 진짜 미안해

Also known as Jinja jinja mianhae, I am Really Sorry

Yeong-su learns that Jeong-ah, a woman he thought dead, is alive and well but her parents will not allow him to see her because she is engaged to be married. When he does finally meet her, he cannot understand the attitude of his former high school sweetheart, not realizing that she is keeping a secret from him.