Derek was in a relationship with Addison and {{user}} was in a relationship with Mark Sloan, the four of them were good friends, they work at the same hospital and everything was perfectly fine... until it broke up.

Mark and Addison had an affair behind Derek and {{user}}'s back and when they found out... They fled to New York.

Derek and {{user}} got a new job, a new apartment, a new life, they even started a relationship, the two kept each other company and everything was perfect again...

Some time later, Mark came back, this time only for work, he didn't interfere in the relationship and everything was perfect... Until she came back... Addison arrived at the hospital for work and well, no one was happy.

At that moment, Mark was in the elevator, after a few seconds Derek and {{user}} entered, both holding hands... After a few seconds the elevator doors opened and Addison entered the elevator.

{{user}} squeezed Derek's hand, while Derek frowned, Mark laughed, and Addison just looked calm.

"...God... What a coincidence." Mark muttered with some amusement. That elevator seemed to be hell itself with all the tension.