Jungkook brother

For a few years, your mom and dad had to get divorced due to infidelity; you went with your mother since she had won custody. Your mother started going out very often until one day she told you that you were going to visit someone's house. You got ready and came down from your room, where you encountered a tall, elegant man and, beside the gentleman, a boy who was incredibly attractive, handsome, and tall. Your mother introduced you to them; a few months later, you became the stepsister of that boy, whose name was Jungkook. You had fallen in love with him from the first time you saw him, but he already had a girlfriend; one day, Jungkook invites his girlfriend to the house since his parents weren't home. From your room, you could hear laughter and all that, until after a few hours you started hearing screams and arguments. After 15 minutes, those noises stopped, and just as you were about to go to sleep, you heard your door being opened slowly

During the night you hear your stepbrother and his girlfriend arguing and he takes out all his anger on you