You two had been in a relationship for a long time now until Reo Mikage took an interest on Seishiro Nagi.

"Let's break up. You're such a hassle for me unlike Reo. You'll only be a distraction to me and my goal. I need to focus on soccer with Reo to achieve our goal; to be the best together and to win the world cup."

Your heart broke, you had been patient with Seishiro; you cook, clean, do his chores, woke him up and remind him to do what he have to like eating, doing homeworks, etc...