"Aera, are you alright?" Sehun asked with concern, "you haven't been paying attention at all. 

  He was right. I couldn't confuse on anything the entire day. My mind kept going back to the dorm where Luhan currently was and I kept on wondering if he was alright; if he was lonely; if he was hungry; if he was whimpering. Needless to say, the more I thought about it, the more worried I got.    "I'm okay, no worries." I faked a laugh and tried to change the subject. "Anyway, so the aggregate supply curve is only affected by the self-adjustment mechanism and what other two things?"   Sehun looked uncertain, not in his reply, but in the fact that I said I was okay when I was distracted the entire time.   "Productivity and technology, you should know this, Aera." Sehun frowned. "We had a test on this last week."   I laughed again as i scratched my head. "I know, but you know how my memories are sometimes."   Once again, Sehun gave me a look that said he didn't believe me. Which made sense in a way, because I've always been really bad at acting, and Sehun knew that.      Despite the fact that Sehun was a guy and I didn't have very many guy friends, at all, because I've always found it difficult to befriend the male population. However, Sehun was different. For some odd reason, I always felt comfortable whenever I was with Sehun. Perhaps it was because of the fact that I knew Sehun since childhood, or perhaps Sehun had always been with me through the ups and down of my life.   Whatever the reason was, Sehun was the one person that I could go to for anything, and he would understand my situation and help me in whatever way he could. Usually, there really wasn't anything that went past Sehun's eyes, because he was so observant and sometimes even knew me better than myself. Which was why it was so painfully difficult to hide the fact that I have another human-puppy thing hiding in my dorm.    I could tell him, but I simply felt like this wasn't something i should share with anyone at all, especially Sehun. Because I knew Sehun would come up with solutions that would be all for my good, rather than for Luhan as well. Because he would solve problems with logic, and he knew that if I were to get caught with a puppy in my dorm, I would get kicked out and be suspended from entering any dorms at all.      "Do you want to go over the materials for the calculus exam coming up, Aera?" Sehun asked as he gathered his books in his bag.    I, on the other hand, barely heard him as I quickly gathered my stuff as soon as the class was over. In was already two in the afternoon and I had already left Luhan alone for five hours. And at this point, my thoughts were running wild about the lost puppy in her dorm. Things like how he was doing, if he got hurt, or even ran away. Though I hardly think he could happen because I made sure to lock up the front door before I left for class, but she still couldn't help but worry over that what ifs.    "Huh-oh, sorry, Sehun," I replied as I slung the schoolbag across my right shoulder and waved goodbye to Sehun, "I really have to get home. Next time, Sehun, next time. See ya!"   As soon as I stepped out of the lecture room, I started rushing past the students in the hall and proceeded to run down the streets as well.    When I finally got to the dorm, I took a deep breath before I inserted my keys into the lock, only to gasp and felt my knees weakening. The door wasn't locked. But I could have sworn I locked it this morning. I even checked it. I knew for a fact that I had locked the door this morning, so how was the door unlocked. No one else had spare keys to my dorm, not even Sehun. The only person that did was the school, and they wouldn't go into a student place unless they give them a warning beforehand, unless they were accused of having illegal possessions in their room.    At this point, I started freaking out silently and looked around the halls for anything possibly suspicious.      "Aera."     I screamed.    "Jesus, calm down. It's only me."    I turned around at the familiar voice and realized it was Sehun with his hands up in the air in defeat.    I could feel my heart pounding at the throat at the scare that Sehun gave me. And I let out a long breath of relief as I put my hand over my chest to calm down. "Sehun," I breathed, "I thought you were going to the library, why are you here?"   Ignoring my question, Sehun proceeded to ask his, "What's going on with you these days, you've been acting weird every time I see you." Sehun frowned, but instead of looking angry, he looked more concerned. "I followed you because I was worried."   I took a couple breathes again before I replied with the most reassuring smile I could muster, but knowing Sehun, he probably saw right through my act. So I just sighed again and placed a hand on his shoulder. "Trust me, Sehun. I'm totally okay."   Sehun searched for anything more hints in my eyes but when he knew I wasn't going to tell him anything more, he simply sighed in defeat. "You'll let me know if