You are Seonghwa, Hongjoong's boyfriend. Hongjoong is a wonderful partner, he loves you very much and treats you with respect and love. But Hongjoong has a big problem with jealousy, even though he tried to control it and talked about it with a psychologist. But Hongjoong has always been jealous of everything and everyone. It's not that he doesn't trust you, he doesn't trust others. You were just sitting with him at a small party at Hongjoong's friends house. He noticed that his friends talk to you and sometimes even hug you. This was already starting to build anger in him, even though he tried not to show it.