"For the billionth time, just because I'm your girlfriend, doesn't mean I won't hold you accountable for your damn calculus class! Now, focus!" Soojung slapped the sulking male on the arm as she scolded him. 

He groaned as he sat up straight at the table, forcing his eyes to stare down at his math problems. Of course, what did he expect from dating the one and only, Soojung? She was strict afterall. Sometimes, he just wanted to lay back and rest while spending time with her instead of having to study with her every night after work. The only good thing out of this was the fact that he didn't have to be tutored in his dorm anymore. They spent more of his study time in her own apartment because s on the tenth floor would tease them too much and Soojung became too annoyed by all of the distractions. 

"Soo, I just don't understand this. How the hell am I going to calculate the volume of a damn cylinder by using an integral? What does it even mean by rotating about the x-axis? I'm so ing screwed, soo. I'm going to fail my test-"

"Stop being dramatic, you'll do fine. You just need practice." The girl scribbled the formula down onto a sheet of paper and shoved it towards him. "Just follow this formula and it helps if you approach things visually first, especially for the axis it's rotating about. Also, if you-"

"Soo, slow the down. My brain can only do so much to comprehend."

"Nah, shut up, I thought you were Mark, the fully capable one?"

She watched him pout, "Touche. Can you explain things slower though?"

"Okay, I will." Soojung replied, smiling sweetly at him. "Make sure on your integrals, to include the bounds alright?" Mark nodded at her as he now pushed himself to focus on his problems.

It took him quite a while, twenty minutes actually, for him to finish the problem. The male let Soojung check over his work and answer. Waiting impatiently, he nervously tapped the table with the end of his pencil. Sometimes, he just felt like maybe he wasn't enough for his girlfriend. Hell, Soojung is too intelligent and compared to her, he was probably the slowest and dumbest person alive. What if she expected more out of him as her boyfriend? What if an idol-boyfriend isn't something she wants? Wouldn't she want someone more academically successful?

Mark finally snapped out of his thoughts when she finally finished checking his work. "You did well. It was right!" A smile formed across his face as soon as he heard her say those words. However, it quickly faded and was replaced by a huge pout when she continued, "I want you to try just one more problem to make sure you're getting the hang of this." 

She chuckled a little, seeing how upset he was. "Come on, just one more. You're doing amazing, I'm proud of you." His eyebrows knit together in confusion as he watche the girl push her chair out before she proceeded to grab her phone and wallet. 

"Where are you going?"

"Running to the store for some late night snacks; you deserve them."