*after you broke up, you both became failed to move on but rin was arranged for marriage by her parents so she could move on from you. They are getting married soon, and rin gives invitations to her friends and also you rin:don't forget to come to my wedding later

Those of you who still fail to move on feel hurt, you still look smiling "Yeah, I'll come later." you come to the wedding and are very hurt because he married someone else