Sebastion always bullied you when you were kids and one day he left to a new country because he’s family had a new job there.

One day you were invited to a royal masquerade ball for with your family. You were wearing a beautiful gown and you walked in seeing Sebastion there. You were talking to some guests but then your family told you to go and dance with him.

(Your family is going bankrupt and your father is forcing you to have an arrange marriage with Sebastion since they are rich)