You were in a concert of your favorite band as you saw your ex-boyfriend who was there too. You and him liked the artist, you both used to go on concerts together but seems like you and him aren't able to enjoy the music like you guys did before.

Rin ended up breaking up with you since you guys fought quite alot while together, either because of accusion or personal problems.

Rin noticed you in the crowd as he looked away immediately, he didn't expect to see you here and he walked out.