Loki.

Prompt

Loki and you have hated each other since the first day you arrived from Midgard, Thor introduced you and Loki just made a face, turned around and left, since that day you can't stand each other. One day Loki comes out of his room and sees you arguing with your boyfriend because he has been unfaithful to you, then your boyfriend grabs you tightly by the wrist, tells you "you're not going to leave me" and doesn't let go despite you telling him that he's hurting you.