A/N : I will be writing the follow chapter of the scenes that did not appear in the episode "Yesterday." So whatever happens in the show, still happens. If that made sense.

---PAST HAUNTS--- (PART XVI)

That would be good. Addison thought, still annoyed at the way Derek had decided to put things between them. Things are getting better between them, but she could still see it in Derek's eyes when he look at Meredith. It annoyed her, but she knew she had to wait it out. It was her fault partially, especially for sleeping with Mark. But it's not entirely her fault, didn't Derek know that? And how on earth was it possible to fall in love with someone over knowing them for three months? Addison wedge the clip between her lips as she combed part of her hair up, leaving the rest to fall around her shoulders.

There was the sound of feet shuffling as Derek made his way from their bedroom to the refrigerator, bending down to grab the can of sardines before he shut the magnetic door close.
"Morning." Addison greeted, turning around to face him with a smile. Derek looked through the clump of messy hair to Addison with a grin and gave her a peck on the cheeks.
"Morning. You're up early." he said, noticing that she was all dressed up and ready while opening the can of packed sardines.
"Want some?" he asked, emptying the can food onto a porcelain plate before shoving it into the microwave. Addison shook her head and fasted the clip around the cluster of hair she gathered in her hands.

"I have to get to work early. There's a patient that I need to check on." she said, sliding an arm into the black coat. "Coffee's in the pot." she instructed, reaching out to grab her bag from the couch, then lean forward to her husband as their lips met briefly.

"Thanks!" Derek called out just as Addison closed the door behind her, heading out to her car.

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Addison pulled her car into the parking lot as she looked at herself one last time in the review mirror before sliding out of the car. Her heels clicked on the rough pavement as she made her way towards the hospital entrance. From afar, she could hear Izzie's voice laughing away, followed by George's and Meredith's. God, I hope I wouldn't bump into them. she thought, quickening her pace. But unfortunately, like fate had to play with their lives just to torture them now and then, Addison found herself stepping into the elevator with the three interns.

"Good morning, Dr. Montgomery Shepherd." George had greeted from behind, Izzie followed up quickly. Then, Meredith greeted her, almost hesitantly. Addison turned around to them with a nod.
"Good morning." she said. And thankfully, the elevator opened up to the floor of the interns' locker room after a short, awkward moment of silence.

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Derek pushed open the door to the room as the intern glance up at him. "What have we got here?" he asked, making his way to in front of the opened file, his eyes shifting back and forth as he read the patient's chart. The intern started to open his mouth to explain but thought better of it when the doctor himself was analysing the chart, a pen spinning in his hand as his eyes drifted to the end of the paper.

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Addison clipped the pager back to the side of her grey skirt as her heels clicked along the hospital floor. She turned a corner, her head buried in the chart opened in her hands as her eyes scanned the last paragraph of the paperwork. She shut the file, then froze in her tracks as she heard a familiar voice. Low, husky and sexy. One she haven't heard in months. She looked up, her suspicion confirmed as she saw the ragged looking man standing right next to the blonde intern that hated her. Mark. she thought, her eyes fixed onto the situation as Meredith looked up to him with a flirty smile. What is he doing here? she thought, actually wondering if she should take a detour around the hospital to avoid him. There is no need for him to see her, and definitely no need for Derek to see the both of them anywhere near each other. The past had hurted them, and sleeping with Mark was definitely a mistake. She had learnt that, and she was still very much in love with Derek. But would Mark understand that?

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Derek's hands hovered across the straight line that demanded his signature for a moment before he felt the familiar prescence of someone. Someone close to his heart. He looked up, eyes travelling straight to the redhead who stood glued to the ground, her eyes fixed onto something in a distance. Derek shifted his gaze, turning straight to the situation that had caught Addison's attention.
"No. No no no..." he mumbled, dropping the pen on the table as he charged out of the room.

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"Are you hitting on me?" Meredith asked, a sweet smile across her face as she looked up at the stranger. He's got nice eyes. she thought. "Meredith." she introduced herself, holding her hand out. The stranger held out his hand, returning his handshake, but before their hands could meet, a fist came flying straight into the side of his face.

"What the hell was that?" Meredith demanded, looking from Derek and Mark in shock.
"That was Mark." Derek explained, shaking his fist in pain.

Addison, looking upon the situation, swallowed and walked away, knowing better than to stay. Derek threw one last glare at his ex-bestfriend and whirled around, noticing that his wife was no longer in the position he last saw her in.

"What is going on?" Richard demanded, stopping Addison in her tracks as they met along the hallway. From behind Addison, Derek held onto his hand as he headed straight to the two.
"Chief." he greeted, wincing at the throbbing pain on his hand. Richard folded his arms in front of his chest as he turned to Addison, demanding for an answer. But instead, the redhead looked away uncomfortably.

"Both of you, come with me. Now." he instructed, then headed straight into the empty office.

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Addison sat by the lunch table, actually hoping for Derek to come charging at her, sit down beside her, stomp his feet, make a huge din and yell at her. He should be pissed, Mark coming to Seattle to get her back. But no, there was no sign of him. She crossed her legs with a sigh and buried her head down into a book she had brought along with her and poke into her salad with the plastic fork.

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Derek shoved his hand into his hair, standing by the railings as he looked down to the cafeteria. Addison was there, like he thought she would be, like he knew she would be. He looked away, gritting his teeth as he pounded a fist onto the railings, sending a vibrating 'cling' through it. Then he shook his fist, as a stinging pain shot through his hand. He wanted to go down there, he wanted to scream at her, he wanted to accuse her for being the reason that Mark came to Seattle. But he can't. Derek knew she had nothing to do with Mark's arrival this time. She said she was sorry for what she did, but it hurt. It hurt too much to look at her now with the knowledge that Mark is around the hospital, threatening to stomp on their marriage that was picking up on shaky grounds. It hurt too much to be reminded on the night he walked into the house to find his jacket on the floor, it hurt too much to push open the door to his bedroom and found his wife and Mark together, still in the thrusts. Derek turned to take one last glance at Addison, who has her head buried down into her book as she picked at the salad. He sighed. If only we could turn back time. he thought, walking away.

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Addison headed straight into the ladies, shutting herself in the cubicle after she exited the elevator. Derek didn't want to see her at all today, he didn't want to yell. He yelled, but not as much as he would have before. He called her an obligation. Doesn't he feel the way she feel about him now? Even after Mark and everything else? She placed the cover onto the toilet bowl and sat on it, leaning her head against the wall. I will not cry. she told herself repeatedly, but finally, she gave in a dissolve into sobs. For a long while, she stayed in there, biting her lips to silent the sobs escaping from her throat. She didn't want anyone to know she's crying, she didn't want anyone to hear her at all.

She sat there for a whole five minutes in silence as the tears that had rolled down her cheeks dried. Addison drew in a deep breathe, positive that there was no one else in the toilet before heading out of the cubicle. She dried her tears with a napkin, touched up her makeup and headed home. Home. she thought, almost laughing at the thought. Home to Derek is the trailer, home to Derek is the forest that he gave the brownstone up to leave in. Home.

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Derek drove home in silence, even the station that he would turn on to listen on his way home was not playing. He didn't need to hear it, he didn't need to hear the love songs drooning out from the speakers, he didn't need to be conflicted once again by the situation of them with Mark and Meredith. No, he didn't want to think about it at all. Mark is the past. So is Meredith. he keep telling himself. But is it that easy to forget?

He pulled over by the trailer, sighing as he switched the engine off. The lights weren't switched on, it meant that Addison wasn't home yet. He dragged his feet towards the piece of mobile he called home, turning his key into the lock. Inside, he took a shower and lay on the bed, on his side of the bed. Derek stared up at the ceiling, willing his mind to be blank. His gaze flickered towards the thick book left by his bedstand, he picked it up, opening to the page where he had stopped. Maybe reading would help. he thought. But no, the words went by under his eyes, but none of them was processed into his brain. Then, the sound of a car pulled over. Addison. The word appeared in his mind. He wasn't ready for confrontation, he didn't want to talk to her, he didn't want to hear her explanations of why she slept with Mark.

The knob to the trailer turned, Derek duck under the covers and closed his eyes, pretending to be asleep as his wife walked in.

He could hear her sigh in the silence, he could hear her pull in a shaky breathe as she peeled off the coat, dropping it on the hanger, then headed into the bathroom.

After a whole thirty minutes that went by, Addison left the bathroom, taking a glance at the sleeping Derek and headed out of the room. She didn't need to be in the same room with him, lay in the same bed as he is in and feel him so close, yet so far apart. She didn't need to feel the hurt anymore.

She sat on the couch, a cup of coffee on the table as her fingers stroked its surface in a constant motion, comforting herself with it. She released her bottom lip from her teeth and drew in a deep breathe. Mark had told her that he'll be at Joe's, he told her that her marriage is over. But is she making the right choice for staying with Derek?

Derek opened his eyes the moment he felt his wife's prescence leave the room, the book laid opened on his stomach as he shifted himself, now propped slightly upright against the pillow on his back. Subconsciously, a hand reachd over to Addison's side of the bed, his fingers stroking the sheets. The trailer was in complete silence, even the dog wasn't making a sound. But Derek could hear her in the silence. He could hear her silent sobs, her shaky breathes, the sound of fabric rubbing against fabric as Addison shifted on the couch.

Addison stood up, emptying the remaining coffee into the sink and washed up, taking a glance into the bedroom. Did she want to go back in there? No. she told herself. iNot tonight./i She started towards the couch, rearranging the cushions to make herself comfortable as she planned to sleep on it for the night. Then, she heard an audible sigh.

"Addie." he called out softly. She froze, straightening herself as she headed slowly to their bedroom. She stood by the door way, their eyes locking for a brief moment. Derek could see it, her nose slightly redden, her eyes still watery with tears that threaten to fall. Addison looked away, drawing in a deep breathe again. It was taking her a lot to keep herself from breaking down in front of Derek. She didn't want him to think she was looking for sympathy, she didn't want his sympathy.

"Yea?" she asked softly.
"Come to bed."

A/N : After this chapter, I'll be taking the story off the track of how the show is going and stuff. Tell me what you think about it!