The whole time you were in surgery with Derek, it was torture. You felt absolutely terrible, but it wasn't really your fault you were still in love with Mark. To make matters worse, you lost the patient.
As you and Derek scrubbed out, he sighed and leaned against the sink. "I'm sorry for before, it was wrong of me to accuse you of liking Mark still."
Your stomach flipped when he spoke, you thought you were going to be sick. You composed yourself, "c-can we go somewhere to talk?"
You closed the door to the on-call room and Derek took a seat on the bed, you sat next to him and stared at your hands. "(Y/N), what's wrong?"
"I, Uhm, I... think- I think you're right..."
"About..." he questioned.
"Mark," you said in a barely audible voice.
"Oh," Derek said, staring down.
"Derek, I do love you. I really do, and the whole time I was with you I did, I guess I just wasn't in love with you. I tried to tell myself I didn't like Mark, and it worked for a while... until it didn't. I'm so sorry." There were now a couple tears rolling down your cheeks.
"Glad you finally figured things out..." he snapped, "I'm sorry, I didn't mean- it's just... listen (Y/N), I know you loved me and I love you. I love you enough that I want you to be happy, even if it's not with me."
"Thank you so much for understanding, Derek." You gave him a long hug, crying a bit into his shoulder.
A couple hours later you decided it was time to find Mark. You found him in the cafeteria on his phone. "Hey you," he smiled, looking up from his phone. "How'd it go?"
"Good actually. Well as good as breakups go. Derek's a sweet guy, he understood." You smiled, taking Mark's hand.
"I agree, I should probably find him and say something. He's my best friend, after all and I'd like to keep it that way."
Later that night, Mark stopped over your house. You hadn't seen him since the cafeteria. "What the hell happened?" You questioned, noticing his bruised eye.
"Derek," he replied, sitting on your couch. "He got pretty mad, and he punched me. I mean, I don't blame him to be honest. He was good after that. So I guess we're good?" He said it more as a question than a statement.
You got a washcloth and some Neosporin to clean up his bloody eye. After that you watched a movie together. "Maybe we can try to set Derek up with Meredith." You told Mark, only half joking.
"Eh, not sure if she's his type." You both laughed and cuddled closer together.