A/N: Please read and review, I love hearing what you guys think, it inspires me and honestly makes me so happy!

Disclaimer: Dick Wolf still owns them.

Olivia had Nick leave shortly after, she got dressed and called Cragen requesting the day off. Cragen didn't argue with the detective, since she had been cleared to return to work she hadn't taken a single day off. That worried Cragen, along with the stress of her upcoming trial he understood if she needed a day or two for herself. Olivia sighed, happy to be home alone for once. Her thoughts filling with Nick's last statement before he left, "I care a lot about you Olivia." She smiled at the thought, those blissful memories leaving her mind and filling with thoughts of Brian. Olivia paced back and forth trying to figure out just how she was going to explain her actions to him. She wanted to call him, a surge of guilt filled her and she needed to confess her indiscretions. But after contemplating the ideal for a while, she realized it was something she would have to tell him in person. Olivia heart ached at the thought, she didn't know if she could handle it. But unfortunately, there was no other choice.

Brian smiled as he approached the brick building, it was their home, a home Olivia and him had built together, it had taken so long for her to open up and at times he wanted to just give up, but Brian knew from the beginning that Olivia was the one for him. Alongside him in the car was a bouquet of red roses, the drive home had taken a little longer than he had expected. He was coming home early, he wanted to have enough time to talk to Olivia and then take her out to her favorite restaurant. Nerves rushed through Brian; he was going to propose tonight. Brian had thought long and hard about how he would ask Olivia, at moments he wanted to be extravagant with the proposal but he knew Olivia would like something sweet and simple. Brian had wanted to ask Olivia for some time now, but after talking to her on the phone he felt the uncertainty in her voice, he wanted to show her that she had nothing to be uncertain about, he loved her and he wanted to spend the rest of his life loving her. Brian picked up the ring at an old antique store. A princess-cut diamond was at the center of the ring, twinkling diamonds falling around it. The band was 10k white gold. It was elegant, graceful. He knew Olivia would love it.

Brian had changed from his boring work clothes into a more causal outfit, blue jeans and a black shirt. It was chilly out so he had a light grey cardigan on. Brian took a deep breath in hopes that some of the nerves would leave his body, before knocking on the door. He had the ring in a purple velvet box stuffed in the pocket on his cardigan; he held the roses high covering his face.

"One sec," Olivia said through the door. She unlocked the door, looking questioningly at the man standing before her with a bouquet of red roses hiding his face.

"Surprise!" Brian exclaimed, he moved the roses revealing his identity.

"Brian, I-" Olivia stuttered, "I thought you were coming tomorrow." Olivia said in disbelief.

"Well my meeting got cancelled, and I missed you like crazy." Brian said, handing Olivia the bouquet of roses, he kissed her lightly on the lips. "I already told you that." Brian said letting himself in.

"Yeah, but I thought you were going to come tomorrow night, not today." Olivia said, she tried hard to hide the irritation in her voice, but Brain felt it.

"Liv, what does it matter? I'm here now." Brian grabbed Olivia's hand and pulled her closer, "I want to ask you something," Brian's eyes looked deep into Olivia's, "If I don't say this now, I don't think I ever will." He said with a smile, "Olivia, you make me so happy; you're such a beautiful woman inside and out. I love waking up to you, I love coming home to you, I love being with you." He paused, "You've been through so much and you haven't let your struggles define you, they've helped you to become a better person. You save people every day, you're such an admirable person, you want to change the world and I want to be there right there with you, making a difference. You cry, I cry, you hurt, I hurt." Brian paused, trying the best to find his words. "Olivia, will you make me the luckiest man in the world, and marry me?" Brian pulled the velvet box from his pocket. He opened it revealing the engagement ring, he grabbed Olivia's left hand and slid the ring on.

"It's beautiful." Olivia said a look of complete shock on her face.

"Well…" Brian said expectedly.

Olivia stood in astonishment, her mind was racing, it took her a moment to comprehend what Brian had just asked her.

"I had sex with Nick." The words fell out of Olivia's mouth so easily. She didn't say it rudely, but unemotionally. She couldn't hold the secret inside of her anymore.

Brian moved away from Olivia, a look of rage in his eyes.

"Olivia." Brian said softly, "You fucked Nick?" He ran his fingers through his hair angrily. "You fucked Nick!" Brian yelled, it was no longer a question, but a statement. "I ask you to marry me, and this is what I get?" He let out an exasperated breath, "How long?" He asked, his voice no longer laced with fury, but sadness.

"It happened once… yesterday." Olivia said, she pulled the ring from off her finger, handing Brian back the ring and box. "Brian, the last thing I ever wanted to do was hurt you." Olivia said, it took all her strength to hold her tears in, "Why should I live my life with someone who doesn't really make me happy? Why should you? You should go out and find someone who will give you everything that I can't. You deserve it." Olivia could no longer fight the tears anymore, "You've been so amazing these past months, but Brian we've been wrong from the start."

"Maybe for you Olivia it meant nothing, but when we first sleep together I couldn't stop thinking about just how lucky I was to have you, even if it was only for a night. I thought we had something, but I was wrong." Brian said, his voice breaking, "Fuck Olivia, I can't believe you would do something so hurtful to me. Keep this." He said handing Olivia back the ring.

"Brian I don't want it." She said through tears.

"Olivia, I want you to keep it so you can remember just how close you were to having everything you never had. I want you to remember that you broke us." Brian turned his back to Olivia, and left slamming the door behind him. His anger, his words left Olivia in tears. She had never felt so low in her life.

A/N: Did you guys see that proposal coming? I thought that would be a nice little thing to add. Next up Olivia and Nick talk, and Cassidy confronts Nick.