Yoona's POV

It was lunch time and I was enjoying it while eating and talking to JB, Seohyun, and Bomi. Out of nowhere, Mark came and sat infront of me and next to Seohyun. 

JB asked, "Where have you been, Prince Charming."

Mark chuckled and replied, "Sorry I had to use the restroom."

Bomi chuckled and then asked, "Why do you and Yoona have the same bracelets?"

I looked at our bracelets and replied, "We just got them at the fair yesterday, why?"

Then Seohyun got up and said, "Sorry. I have to go. Ummm library...... overdue books. Bye."

I was about to say bye when Mark also got up. 

JB asked, "Where are you going? You haven't even eaten."

Mark replied, "Not hungry."

And sped up to catch up with Seohyun... I guess. Ugh their goes my heart aching again. What is this? Do I have feelings for Mark? No.. I can't. Whatever. 

And I went back to eating my food.

Seohyun's POV

Matching bracelets? Mark and I never did that... and we've known each other since 4th grade and dated since 8th. What was this?

I ran up to the rooftop and started panicking.

I heard footsteps behind me and it was Mark.

I asked, "What are you doing here?"

He replied, "I should be asking you the same, library girl."

I rolled my eyes and laughed.

I sat down on the ground and Mark did the same. He then handed me a sandwich and told me to eat.

I looked at him and asked, "How did you know I w