You and Kai had had a relationship for 1 year but they broke up because Kai was abusive and distant to you...

Two years had passed and you had forgotten Kai, during a winter night, you had gone to a cafe to relax a little, the cashier looked at you and smiled shyly... the cashier liked you and that was obvious, Kai was also in the cafeteria, he noticed how you and the cashier looked at each other and smiled....this made him too jealous