Notes: Hey everyone! Hope you all had a great weekend! I know I'm one day late and I'm so sorry! I was up till after midnight last night writing for this fanfic... It is definitely going to be a long story so buckle up!

I hope you enjoy this chapter! I intend to post another chapter Thursday, but I will figure out a consistent posting schedule soon! Let me know what you guys think of this chapter and predictions of what is coming next!

After a few hours of TV, Callie decided to just spend the night at Mark's place instead of heading back home. Around 5 am both of their pagers went off. They both looked to see that there was an MVC and a pileup on the freeway caused by an 18-wheeler. That meant lots of injuries and lots of doctors were needed. With these pages, the doctors knew that they needed to run to the hospital as fast as possible. Luckily for them, Mark living right across the hospital allowed them to be there really quickly. They both grabbed their jackets and ran for the front door. As they were rushing out, they saw the door to the apartment across the hall from Mark's also open. Callie heard two women's voices that sounded kind of familiar, and within a second she was face to face with the woman who had been on her mind all night. Right next to her was another doctor from the hospital, Jo Wilson. Callie had never felt more shocked in her life. What the hell is Arizona doing here? Does she live here? No, she couldn't, Mark would have told me. It must be Jo's apartment. Are Jo and Arizona together? Callie thought on that for a second and felt herself get somewhat rageful and jealous, which didn't make sense at all because, for one, she wasn't dating Arizona, and secondly, she didn't even like girls so there was no reason to be jealous. Regardless of the logic that she kept trying to repeat in her head the jealousy continued to consume her.

Finally, after what felt like another eternity of staring into Arizona's eyes Mark spoke up, "You guys got paged too?" Mark's comment shook both women out of their trances. Jo looked at them both, waiting for either to speak up, but when she realized neither of them was going to, she decided to answer herself, "Yeah, we did. You live here Mark? Or Callie? Or both of you?" Callie didn't know why but she felt like Jo was asking that for Arizona's sake based on the way she glanced at Arizona right after asking the question.

"I live here. We were just hanging out last night and Torres crashed. You live across from me, Wilson?" Mark asked.

"No, Arizona does. I just stay here from time to time when I'm too lazy to head home."

Does that mean they are or they aren't dating? Couldn't she try and be a little clearer? Wait, why do I care? Callie asked herself, even though she knew full well why she cared.

"How did I not know you lived here Mark?" Arizona finally spoke up, looking at Mark inquisitively.

"I only moved in last week. I haven't even really been here much since I've been on call the last few nights. I should have assumed other doctors lived here. It's the perfect location."

"It really is."

They were all still standing there staring at each other with an obvious tension spreading between them. Finally, all of their pagers going off again in unison made them realize what they were all doing in the hallway of their apartments at 5 am and got them moving towards the hospital and to work. The four of them made their way swiftly and awkwardly to the hospital and Callie knew that it was going to be a long day.

After what felt like the longest day of her life, starting with an awkward encounter in her hallway, finding out she was living across the hall from a fellow surgeon/Callie's known best friend, and back-to-back-to-back surgeries, all Arizona wanted to do was knock out and sleep for the rest of the year. She didn't have it in her to go back to her apartment after being on her leg all day. She knew that she wouldn't be able to take her prosthetic off if she slept in an on-call room because someone could come in at any moment. All she wanted to do was take it off and let her leg rest for a little. Finally, she decided to go into an on-call room and just try to lie down for a few minutes to hopefully give her enough rest to make it back to her apartment. If Arizona had known who was going to be in that on-call room when she made her plan, she would have just accepted the pain and gone home, but apparently, her never-ending day was far from over. Arizona knew that there was tension between her and Callie. She didn't know if it was from their moment in the closet or her leg. Maybe if I tell her more about the leg and what happened the tension will subside a bit. We can't keep being so awkward around each other, not if we have to work together.

"Hey" was all Arizona said as she closed the door to the on-call room behind her and made her way to the bottom bunk on the opposite side of the room to Callie. Callie was laying on the top bunk of the other bed. Arizona knew she was awake because Callie looked up as soon as the door opened and froze in her seated position. "Hi," Was all Callie said in response as she lied back down. "Tough day?" Arizona asked to see if maybe she was making up the tension in her head. Callie waited for a few seconds before answering quietly, "Yeah. Lots of traumas."

It wasn't like Callie to be this quiet or timid. This is exactly what Arizona hated about people finding out about her leg, but for some reason, she felt like this wasn't the only reason Callie was acting this way. Arizona also felt the need to open up to Callie about her leg in order to hopefully get them back to somewhat normal terms. The fact that they were in a dark room and on opposite ends not looking at each other also helped Arizona feel brave enough to share her story.

"Five years ago, I was working at Johns Hopkins," Arizona started but was cut off by Callie saying, "What?"

"I don't talk about this much so just give me a second," Arizona replied.

Callie sat up again, and Arizona could tell she was trying to look at her but couldn't make her expression out in the dark, "talk about what?" Callie asked. Arizona knew that Callie probably had an idea about where this story was going, but she didn't want to make assumptions.

"My leg. Just listen," Arizona said kindly, "So five years ago, I was working on this case, conjoined twins. They were babies that were very intricately connected. I was able to lead a team in separating them and giving both babies full function and a healthy life. A hospital in Boston had a similar case and asked me to consult on it. Hopkins decided to fly me out there in order to assist with their surgery. We all do it all the time. We take the planes to harvest and collect organs for transplants or fly to help out with a surgery that we are needed on. In our field, it's no big deal to take the hospital plane out for the day and head back the same night. That's what I expected when I got on the plane to help that day." Arizona paused for a moment to give herself a break and stop the tears from streaming down her face. She could already tell that her voice was cracking, and she knew that Callie was still trying to look at her in the dark, but Arizona didn't turn to confirm. She just continued staring up at the bunk above her until she regained her composure enough to speak again.

"Something went wrong with the plane. I don't remember much, but I remember waking up on the ground with my bone sticking out of my thigh. It was just me and the pilot. We were trapped out there for 4 days. I couldn't move, I couldn't stop the pain, I couldn't help the pilot. I was helpless. Finally, they found us and brought us back. They tried to save my leg, but the infection was too deep, and it was killing me. They eventually had to cut off my leg. I didn't take it too well. Paige's reaction wasn't that different from my own. It seems crazy now to think, but I thought my life was over. I thought I could never operate again. I thought it was all just done." Arizona was openly crying now. Tears were streaming down her face as she talked. She didn't know why she was telling Callie all of this. Some of the stuff she was sharing now, she hadn't even told Jo, but something was making her want to open up.

During her story, Callie must have gotten off the bunk because before she knew it Callie had laid beside her on the bed and was hugging her. Somehow that was exactly what Arizona needed but also exactly what broke her. Arizona couldn't take it and everything started rushing out of her as she began sobbing openly and clinging onto Callie as if she were the only thing that was keeping her from drowning. Arizona could tell that Callie was crying also. They both just stayed there in each other's arms feeling more at home than either of them have ever felt in their entire lives.