A/N Thanks for all the reviews. I am glad that you guys like the story so far. Erica fans, don't worry about my treatment of the character. I have no plans to deviate from the character that was presented on the show and I myself have problems with people who seem to demonize her. She was an interesting character and I will always have a place for her in my little Grey's world but I do love Arizona as well and plan to explore her character even more now that we have a little of her back story. Hope you like this one... let me know what you think.

"Erica," was all she could get out. It was quickly followed by a quiet scoff. She felt her eyes roll and her posture change to a defensive stance.

"Callie?" Erica's eyes never wavered, which made things a little more difficult. It was clear she was going to stand her ground.

"Okay..." Callie drew a long breath in and walked briskly out of the elevator and past Erica's stony expression. She did not want to deal with this on her brand new day. She was going to pretend it didn't exist. That was not Erica Hahn back there it was a complete stranger. She walked down the hall with no idea where she was going her head was pointed at the ground in the hopes that anyone she encountered would ignore her passing. She looked up as she came to a turn in the hall. She reached a door she knew well and burst through. Here she was in the familiar and comforting lounge.

She sat at the table with a thick sigh and then she heard a throat clearing and felt eyes trained on her. Oops, she wasn't alone. Her back stiffened and she turned to see Arizona sitting a few feet away from her on the couch smiling back at her affection. She immediately relaxed and smiled back. She felt better just being in proximity to her girlfriend. She rose and sat in the spot that Arizona's hand had just patted. She stretched her hand out to find Arizona's. Once they were touching she felt she could process a little better. Arizona set her research aside sensing something was up.

"You will never believe who I just saw at the elevators."

Just as Arizona had opened her mouth to answer a rushed hand loudly pushed open the door and in stepped Erica spoiling the surprise. Arizona had no way of knowing who the woman was so she smiled pleasantly at the newcomer and looked back at Callie expectantly. When she saw that she was looking in vain she turned back to Erica. Something in Callie's stunned face made her feel protective. Her brow scrunched and she leaned a little closer to her girlfriend.

Erica looked down a the couple not knowing quite how to start. She had obviously been quickly replaced. Her emotions swirled around and instead of waiting for them to settled she decided to be proactive. She wanted this to be as comfortable as possible despite the anger that was flaring inside her. After all, it wasn't as if she was here to see Callie, even if she had seen it as an opportunity to fix things. Seeing Callie with this woman had derailed that plan.

"I want to get this out and then move on. I'm here to assist with a patient that was transferred here from Portland..." She desperately searched her mind for something further to say but to be fair the situation was a little overwhelming. She had practiced what she was going to say to Callie for days and now those days were going to waste.

She took one last look at Callie and Arizona's interlaced fingers and flew out the door the way she came. Usually she had the guts to stick out a conversation like that but Callie had been the one to open her eyes and her heart to what love meant for the first time and to see that she had obviously moved on when Erica still had the imprint of Callie stuck right on her heart hurt like a bitch.

Arizona had an inkling of who the person was who had just vacated the room but in these cases she always felt safer if she got a conformation before she went any further. She turned away from the door to find Callie with the heel of her hand on her forehead staring down at her shoes.

"Callie?"

"Yep, that was her," came the reply.

"Okay," Arizona said then stopped to gently remove Callie's hand from her forehead, "She's here and she'll leave and in the mean time we're going to be fine... and you have got to tell me this story."

Arizona had never pressed for the details. She had simply accepted that Hahn had vanished leaving behind a broken hearted woman who should obviously be treated better than she had been. The gossip had afforded all kinds of scenarios some of which were a little too out there to be believed. Here is what she did know. Erica and Callie had been in a disagreement over the issue of a heart that was supposed to have gone to one of Erica's patients. How Callie figured in personally, she had no idea.

"There's not much to tell. Awhile back Izzie fell for this patient and he needed a heart transplant. She did some pretty extreme things including cutting his LVAD wire to get him bumped up on the transplant list. Unfortunately, that meant that Erica's patient didn't get the heart. When she found out about it she blew a gasket and walked out. She couldn't believe that I wasn't just automatically siding with her."

Callie decided to flesh out the details at a later date when she wasn't feeling so blindsided and thankfully Arizona seemed to accept that.

"Wow," Arizona replied in amazement. "So, how do you feel?"

Callie looked up, her eyes wide. "Like my ex just showed up after vanishing into a parking lot never to be heard from again."

"Till now," Arizona said. She pulled on Callie's hands until she was laying across her dark blue scrub encased legs. She played with the dark hair now splayed across her lap and wondered what to say next. This one wasn't really in the manual.

Callie allowed herself to relax across Arizona's lap and wondered if it could all be a dream. That would be nice. She could feel those tears that had been building slide from her eyes to darken the blue of the scrubs below. She searched herself for a spark of that happiness and rightness that she had felt as she had entered the building. It wasn't coming.

One thing did come. She could not hide out here all day. She had work to do and so did Arizona. With a heavy heart she made herself sit up and look at her girlfriend.

"I'm going to be fine," she said without certainty. "I am going to go do my job and deal with that. I don't care if she's here or not. I'll feel better when I find some bones to crack."

"There ya go," Arizona praised, "I've got a surgery in about an hour but I want you to page me if you need me, okay?" She hoped that Callie would do as she said even if she felt she couldn't help much. It made her feel better to know what her girlfriend going through even if she couldn't be with her.

"Okay," Callie said. It felt a little better knowing that she could page Arizona even if she wasn't planning on interrupting her day unless it was absolutely necessary. It wasn't as if she could simply rush out in the middle of saving a little kid's life to rescue her from her big bad past.

Arizona leaned into Callie placing a kiss on her lips. She wanted it to convey how much she was hurting for Callie and how much she cared for her. She pulled back and went in for on last hug. She breathed in the scent of Callie's hair and resigned herself to leaving.

She rose and twirled her lab coat around and slid her arms into it. She made sure she had everything before she looked one last time into those dark eyes she loved. With a simple nod she left Callie to her day. Now she had to refocus. There was a nine year old with nerve disorder to attend to.

Callie left the room soon after and went up a floor to slide right back into work. After she was welcomed back and congratulated by several of her friends she grabbed a chart and went to work. Now things could get back on track for awhile. She went back to the elevator intending to ride down to the ER but quickly decided that the stairs were the safer of the two and took off for the door.

A few hours later she was back in her grove. She had pushed Erica to the back of her mind and she was concentrating on the patients and what they needed from her. That was until Bailey walked up to her and directed her to "the gentleman who could possibly be your father".