After dinner, Elliot and Olivia started watching a movie but they fell asleep halfway through it. Elliot had his arms around Olivia as she lay her head on his chest.

Mark walked into her apartment wanting to apologize for working so late. He had spare keys so he decided to use them, just in case she was sleeping since it was already 11 pm.

He walked in and stopped seeing Elliot and Olivia sleeping in each other's arms. He cleared his throat and they started to slowly wake up.

Olivia saw Mark standing there and quickly stood up. Elliot stood up just as quickly. "I should go," Elliot said then left.

"I thought you were working all night," she nervously said.

"So you thought that I wouldn't find out about this."

"We just fell asleep Mark, nothing even happened. We had dinner and fell asleep watching a movie," she explained.

"Somehow I don't believe that. Olivia he had his arms all over you. What am I supposed to think when he's here this late at night?" His voice rose.

"Mark we fell asleep. He came over, we had dinner, and we fell asleep watching a movie. I know it looked bad but, I promise you nothing happened."

"Olivia I'm so fucking sick of this. Just admit that you have feelings for him. I'm so fucking tired of trying to convince myself that you actually want to be with me!"

She was taken aback. She never thought that he actually felt like she didn't want to be with him. "Mark if I didn't want to be with you, then why would I be wasting my time?"

"Because you can't have him. I'm just second best, I guess."

"You know that's not true."

"Do I? I don't fucking know because you won't talk to me anymore. I fucking came here to apologize for working so late but I guess as long as you have him around, you're okay!"

"Mark why are you making such a big deal about this? I don't fucking need this from you!" She understood that he would be angry but he didn't need to yell at her and make it a bigger deal than it is.

"How would you like it if I fell asleep with a girl in my arms? You would be just as mad!"

"No because I actually trust you! I'm so fucking sick of having to explain myself to you! He's my partner! He's my best friend but you're my boyfriend! I want to be with you! How do you expect to have a relationship if you can't even trust me with my best friend?" She yelled and tears started coming down her face.

"Don't fucking turn this on me! And you don't fucking trust me! You saw me at a bar with my brother and his fiancé and assumed that she was with me! If I so much as touched her, you would've ended this relationship so don't tell me you trust me!" This happened a month ago, where Olivia and the squad went out for drinks after they closed a case. She saw Mark with a man and woman, drinking and taking shots and she assumed that Mark was cheating on her. Olivia was already so tired from the case and her and Mark haven't been on good terms so she didn't even think things through when she accused him of cheating on her.

She just shook her head. "Mark I don't need this right now. Just leave," she whispered. She started walking to her room but stopped when he spoke.

"Running away like usual."

She turned back to face him. "I'm not going to fight with you about something this stupid. If you can't believe me, then what else can I say?"

He sighed. "C'mere" She sighed and walked to him. He sat them both on the couch. "Olivia, how do you expect me to react? We've been on the rocks lately and then this happens. What am I supposed to think?" He asked quietly and wiped her tears.

"I just want you to believe me when I say that nothing happened. I just don't want you to be mad and I don't want to be mad," she whispered.

"Ok," he said and kissed her forehead. "I'm not mad anymore." He took her in his arms and held her.

She rested her head on his shoulder. "I'm sorry."

He kissed her forehead. "C'mon let's get some sleep." He got up and led her to the bedroom. They both lay down and held each other as they fell asleep.