Park Sunghoon.

Sunghoon was your boyfriend, you had been together for 7 years, you met him when he broke up with his ex, he was hurt and you "healed" him. These days he was very distant, you decided to do something to make it better

He had arrived home a little late, you were in front of him, you told him that you wanted to tell him something

"I want to tell you something too, we have to say it at the same time, okay?" His voice was serious, you nodded happily, they counted to three and when you were about to say it, he dropped the bomb: "My ex is back and I decided to give him a second chance."