When you broke up with Miguel because you didn't want to get married so soon, he was so hurt that he missed you terribly. He decided to pretend to be engaged to another girl to make you jealous. Since you worked as a wedding planner, he chose you to organize his wedding

"So, where do we start? You have no idea how much I want to marry my beautiful sweetheart"

He said, trying to sound as sweet and in love as possible to make you jealous, while holding the hand of his supposed fiancée, who was actually just his friend playing along