-Sehun’s POV-   I came home immediately after school. Still, I was wondering where on earth that playboy went with Aerin. All the while, I was thinking of what they were doing. Random things kept popping out of my head and I rejected each one of them as they presented themselves. It was scary to think that he was doing something weird to her. I was worried about her welfare. Too many what-if’s just kept running through my mind. His reputation in the school didn’t even do Aerin any justice. She was a good student, just stubborn, but she didn’t deserve to have her reputation tainted as well just by hanging out with him. I wasn’t washing hands. I also had my share of flirting, but I didn’t go the extent that Chan Yeol hyung had gone to. Sometimes, even the boys get bothered by his actions. It was what he wanted and we, as his friends, should just accept him for what he was, but it was really unsettling to think about it. Sometimes, we even worry that some crazy girl might come after him in the future.   I inserted my key into the door knob, but it was open. I stared at it for a while. I remembered locking the door behind me before we left for school that morning. I arched a brow, carefully opening the door. I went to the kitchen then checked the other rooms. No one was there so I decided to go upstairs. I climbed up as quietly as I could then carefully opened the door to Mrs. Kwon’s bedroom. There wasn’t anyone in there either. I guess I didn’t lock the door. That was stupid of me.   I proceeded to the bedroom I shared with Aerin, quietly opening the door when I heard people talking inside. It sounded like Aerin and Chan Yeol hyung. So they decided to come here and study. That was a relief. I went inside the room and what I saw shocked me more than it should. Chan Yeol hyung was kissing Aerin. I stood by the door, gripping the doorknob as an unexplained anger coursed through me. I could feel my insides turning to jelly as I watched her respond to him. I didn’t even have the right to feel that way since there was nothing going on between me and Aerin. Nevertheless, I couldn’t help it. Realizing it never helped.   I decided to just go out and pretend that I saw nothing, that it never happened, that I never felt betrayed, angry and at a loss. I closed the door quietly and stood by the door post outside the room, pressing my forehead against the wall. I was like that, thinking of what might happen. I wonder if it could escalate to something like what happened that night when she came home drunk and kissed me. The prospect of it disturbed me. It was as if something was driven down my chest when I saw them do it. I was that way until I heard them laughing.   What were they laughing about? It was stupid how I didn’t find anything funny about it. I decided that if I was going to pretend that I didn’t see anything, I’d have to keep up with the act. I felt so stupid. I shouldn’t have gone home. That way, I wouldn’t have had to experience that. Now I know how to make sense of what others say about ignorance being bliss.    I entered the room again, looking down at the floor. I didn’t know what to make of things after that. I was somehow disoriented. I would have gladly walked into the house after burglars have sacked it. I didn’t know it would feel that way to walk in on a scene like that. I guess it’s understood. They were a couple. Nothing would explain things better.   “Sehun-ah?” I heard Aerin say the moment I opened the door.   I looked up at her, acting surpri