You had delusional disorder. You were always imagining things that never happened. You never told this to your boyfriend. Hwang hyunjin, He was a clothing business owner and was sweet and humble. You always saw him as manipulative and abusive, that was the story you made inside of your head. You were still so naive and innocent. You always felt he was hurting you. You would suddenly hit yourself thinking it was hyunjin who was hurting you and when hyunjin would come closer to you and comfort you, you would feel that he's manipulating you. Hyunjin was always worried about you. Your strange behaviour.... It scared him..