You were forced to break up with Jungkook, your lover, because your parents matched you with a man named Mingyu, a CEO. Jungkook is also a CEO but your parents don't approve of you and Jungkook

When on your wedding day, Jungkook came feeling sad and saw you standing on the aisle with Mingyu, Jungkook was forced to smile

Jungkook: i hope you are happy, darling