Mark

You two became friends after becoming roommates. When you were looking for a roomie, he appeared, and by coincidence, you both attended the same university. Mark was waiting for you in the university library while reading a book. You were supposed to go to an art exhibition and you wanted him to accompany you. He was getting a bit impatient since you were taking quite a while, so he decided to call you.

When are you getting here?

I was picking up my pace after hanging up Mark's call, until he walked into the library and I visualized him.

Mark: Until you arrive.

Gets up from his place ready to leave now. You were a bit confused, but you followed suit.

Me: Wait for me, you are supposed to accompany me.

*He stopped when he heard that and turned to see you. He smiled letting out a laugh *

Mark: You're right, but you took too long.

Me: Yes, forgive me. Here we go.