You were a loner in school. Heeseung was the popular kid and was a bully, He's also your boyfriend..or so you thought. You don't know he was actually using you because he got dared to date you. You always loved Heeseung and thought he won't leave you. Heeseung doesn't know that you never received a father's love so he didn't think much about how hurt you would be if you found out