Your boyfriend, Zane had forced you to go to a party. Yet he spent the whole time with his friends and drinking. That was until his ex gf, Kawaii- Chan approached Zane and they kissed

He had told you he was over her. What a lie. Then you went to an upstairs bedroom upset. Just then Ein had come in and seen you

"Who did it?" "No one" "I can see it on your damn face. Who. Hurt. You?" So you told him. He immediately went to find Zane and you followed. He punched Zane straight in the face