You gripped the TV remote closely as an engament of Ethan, your boyfriend and his childhood sweetheart. He had told you that he couldn't stand his rival Kai forced marring her and had to do something against it but the kiss that was displayed live in the TV was more tgsn to help her. The way he looked at her and the kiss that was filled with passion clearly told another story than the "were just friends and she needs my help" story.
You turned off the TV and went to clean the bedroom. And by doing so you found a slip that clearly wasn't yours.
Just then the doorbell rings. You open the door to none other than Ethan's rival Kai. He proposed you a plan in his mind to tear down Ethan's business. And for that he needed you, the woman that was behind Ethan. The woman that had always been at Ethan's side, that knew every little thing about him. And the news with Ethan's sweetheart forced to marry him was just to get to you the real diamond.
So he asked you to marry him. Kai could hit Ethan with the fact that the woman who stood behind him to switch to the other side- aka to the rival.
Before you realize it you had agreed and the marriage papers were in your hands.