They are able to make a connection to the cold case. But the success doesn't seem like much, when they are no closer to finding the perpetrator, despite help from the FBI. After a week Olivia is pretty warn down with the whole situation. Her partner enters the squad room as she heads for the exit. He stops and looks at her.

"Where are you going?" he questions.

"I need some air," she admits.

He nods, and allows her to pass. The elevator doors have just closed behind her, when his gut throws up a red flag. It twists into knots. He heads for the stairs. He makes it to the bottom close to the same time that the elevator does. He waits for her to pass. He watches her walk outside. He follows her from a safe distance. He expects her to walk away from the building, and get some air. Instead she heads towards their parked squad car. She climbs inside. She pulls away from the spot. Nick happens to spot Fin.

"Hey I need the keys to your car," Nick insists.

Fin tosses his to Nick without a word, or a second thought. Nick climbs into Bessie, and heads out to follow his partner. She drives for several miles. He can tell by her driving that she is too preoccupied to notice him following her, or maybe she is just too consumed by everything to care. He hangs back as she pulls into a parking lot. She parks the car, and climbs out. She walks down the street. He parks his car as she heads into a building just three away from the parking lot. He waits a few moments, and follows her.

He stops in front of the building, and then turns back. He returns to his car, and waits. He waits in the parking lot for a while. His car is parked next to hers, so he knows that she will see him. He knows that it is time to confront her, for her to confront her feelings. His mind flashes to the building he was standing in front of moments earlier. He thinks of the sign on the door, telling what each suite is. The knots return as he recalls the list. He swallows hard, but continues to watch through his window.

She returns to the parking lot, with tears in her eyes. She is so consumed by emotion she pays no attention to his car. She walks past it, to her own. She climbs into her car, and slams the door. She sits in the car, in tears. He swallows hard, shoving down any doubt. He exits the car, and moves toward her. He walks around the front of the car to the driver's side window. He pecks on the window with his knuckles. She looks up at him, with a tear stained face. He motions for her to roll down the window.

"Please just leave me alone," she begs, rolling the window down a crack.

"I am your partner. It is my job to look out for you."

"Please go," she begs.

He shakes his head, and once again walks around the front of the car. She sighs in relief as he moves past her. His next move catches her off guard. He pulls the passenger door open, before she can stop him. He climbs inside the car, next to her. He waits patiently for an explanation.

"Talk to me Liv."

"I don't want to talk to you," the tears stream down her face, "I don't want to talk to anyone."

"I think that it is safe for me to assume that you weren't in the private investigator's office."

"No, I was not."

"And I am guessing that you didn't go to the dentist."

"Not today," she admits.

"It isn't a very big building. It doesn't leave a lot of options. You were getting your taxes done?" he hopes.

"No," she shakes her head.

"Olivia."

"Nick, please just go. My life is a mess. I don't want to talk. I don't want you here. Just go, and leave me alone."

"I can't," he argues.

"Why not?"

"Because I have to be honest, I don't trust you right now."

"That means nothing to me."

"Olivia it is my job to protect you."

"You didn't," she sobs.

He reaches over to hug her, but she pushes him away.

"Don't! Don't try to make this better. You can't make this better. No one can make this better."

"Olivia please talk to me," he begs, offering her his handkerchief.

She pushes his hand away, "Please just leave me alone. Just go away."

"What happens if I do? Huh? Where are you going to go, if I get out of this car?"

"Why does it matter?"

"You don't have a gun," he points out.

"It isn't that hard to get one," she argues.

"Cars can be used as weapons."

"Weapons? What are you talking about?"

"Driving headlong into a wall, or off a bridge."

"Nick do you really think I am going to..."

He cuts her off, "I don't know what you are going to do. I just know what offices were in that building. I know what offices you didn't go into. Olivia I am here for you. Please just let me be here for you. Neither of us can change what happened. I am not trying to. I know that I failed as your partner, but please give me the chance to redeem myself."

"I can't," she argues.

"I know that you blame me. I was your partner, and I should have protected you. I should have been able to prevent this guy from entering your life..."

She cuts him off, "It is too late now."

"I am sorry."

"Your sorry? My entire life is in shambles, and all you can say is that you're sorry?"

"I know you hate me. I know that you are angry at me."

"Nick not everything is about you. In fact none of this is about you. I don't blame you for what happened. You can't follow me home every single night of my life, to try to protect me. I am angry at myself. I should kept this from happening. I have been a cop pretty much my entire adult life, and I could have stopped this."

"There is nothing that you could have done differently."

"That is bullshit, and you know it."

"Olivia stop blaming yourself. Talk to me. Please."

"I can't talk to anyone. Everything is completely fucked up."

"Liv!" he is taken aback by her candor.

"My life is upside down."

"It is going to take time to heal, but things will get better."

"It is easy for you to say that. You weren't there."

"I know."

"This is my worst nightmare."