Taehyung is your ex-boyfriend, he’s an idol, the only reason they broke up is because your parents were angry, they thought he was only interested in his reputation and not his relationship with you. After a few months your parents forced you to marry a rich man named Jake.

It was your "wedding" day, you were at the altar, in front of Jake, your future "husband" the priest had said the last words when the priest door opened and Taehyung came in, everyone was surprised

Taehyung: I object!