"Mark, I need a favor. I need you to hit on Cristina Yang, so that she won't be in our bed every morning." Derek took a sip of his coffee.

"Yang? Are you serious? I mean – have you looked at her?" his friend raised an eyebrow.

"You slept with my wife."

Mark smiled sadly, but Derek didn't see it. The fact that he was still thinking about her despite the divorce, the distance, and all the years passed, had made him freeze in shock.

It wasn't that he though about Addison, no. Maybe it was some left anger that never went away. Maybe he had to let it out.

"And in high school you slept with a girl that I really liked, but I didn't get mad at you, because I didn't love her, Derek. She wasn't my life. She didn't breathe the life back into me. And, I never threw that in your face. You did, and let's say it man, it's been way too much time to sell the 'you had sex with her in my favorite sheets' bullshit. This is not about the sheets. Or about the house, or the bed, or the fact that she was your wife. It's because you love her. So will you open your eyes? I like Meredith, but not for eternity."

Derek recognized those words. He had written them, sung them, one day a lot of years earlier, when he was happy and in love with a gorgeous redhead.

Now, he had a perfect blond girl, but was it the same? Was it better? Was it... less?

Derek shook his head, as the elevator doors opened and Mark exited.

Suddenly, he laughed. He had asked him to sleep with Yang! What kind of a crazy word was he in? With Addison that wouldn't have ever happened. She wouldn't let her friends sleep in their bed.