Callie
I'm about to head out of the door for work when there's a rapid, angry knocking at my door. I open it to reveal my frantic, but immaculately dressed, ex-wife. She looks like she's about to explode.

"What the hell do you think you're doing?" She says, brushing past me and into my hallway.

"Excuse me?" I say with raised eyebrows, shutting the door behind her. "Would you like to explain why you're barging your way into my house?"

"You told Sofia," she shouts. "About me and Amelia."

"Oh... that," I say, quietly.

"Yeah, 'that'," she says, angrily. "What the hell, Callie? It's not your place to decide when she knows this stuff."

"She's a bright kid, she was going to figure it out sooner or later," I reason with a shrug.

"That's not the point," she says, frowning at me. "This should have been my decision; yet another one you have taken away from me!" She says throwing her arms up in the air. Okay, she's frustrated. She's pissed.

"She was asking questions, Arizona! What was I supposed to do? Lie?" I shout back. She takes a few steps towards me, showing me that she won't be intimidated.

"My little girl was sobbing in my arms last night because she didn't understand the situation properly," she says sadly, a look of devastation crossing her face. My own features drop as I'm informed of the upset I've caused Sofia. I didn't mean for it to go like this.

"Is she okay?" I ask, softly.

"She's fine... now!" She spits the words back at me. I can feel the anger starting to build back up. "You want to know why she was so upset?" She asks, rhetorically. "She was upset because she adores Amelia," she begins. "And, she doesn't want Amelia to leave her the way that Penny did."

Ouch! That stings. Penny leaving was hard for both of us... but, I had no idea my daughter was still struggling with it.

"I... I explained that to her..." I stammer out. "I thought she understood what happened."

"Yeah, well, clearly, she didn't!" Arizona says, her tone still mad. She looks at me as tears start to sting my eyes. Her frown disappears and she sighs out. "Look, I didn't mean for that to come off so harsh," she says, much more gently. "I'm just... I'm so mad, Callie," she says in an irked whisper.

"I'm sorry," I say, honestly.

"You say that... You say you're sorry, but the same kind of thing happens over and over again," she shakes her head, sadly. Her eyes drop to the floor and I feel my heart sink into my stomach. This is it. She's letting go of any last scraps of friendship we have left. "Callie, my business is my business. I will talk to Sofia about this kind of stuff when I'm ready." She says, calmly but firmly. "I am sick of you making decisions for me... still!" I am left speechless. She's right. I have no defence. "No more, Callie... No more!" She resolves and she walks past me and out of the house. As she slams the door, I put my head in my hands and let go of the sobs I've been holding back.

Why did I tell Sofia? Was it truly just because she was asking questions? Did I just want to be honest with her? A part of me says 'yes', but there's also this burning jealousy that runs through me every time I hear Amelia Shepherd's name. How did I want my daughter to react? I didn't want her to be upset, obviously, but a part of me (a dark and manipulative part) wanted her to protest the relationship... To refuse to settle for anything less than her mommies being together and us becoming a family again. Now I know that it's completely unattainable. And, the love that I carry for Arizona, the love that'll I'll always carry for her, is going to destroy us both.

...

Arizona
When I finally get to the hospital, I find my girlfriend in the locker room, sliding her arms into her lab coat. She looks at me with a smile so flirtatious I could fall to my knees. But, I don't. I play it cool.

"Hey, was Sofia okay going into school?" I ask as I start to get into my scrubs.

"Yeah, she was great," she replies. "She, um... she told me she loved me on the way there," she says, with an adoring smile. "And, I could feel myself getting all emotional about it."

"Amelia Shepherd, you're going soft," I tease, pulling my scrub pants up. "You know she loves you."

"True, but she's never said it before," she says, happily. I beam back at my girlfriend, who's completely making my heart melt right now. Focus, Arizona. You have work to do. Change the subject.

"Well, it sounds like your morning was nicer than mine."

"How did it go?" She asks, sensitively.

"I told her my business was my own, and she needs to stop making decisions for me," I say as I finally get my own lab coat on.

"How did she take it?"

"She seemed... cooperative," I decide. "I felt kind of sorry for her after I shouted, but she just... completely drains me." I finish with a sigh.

"Come here," she says, her arms surrounding me. "You're too sweet for your own good, you know that?"

"I can be pretty badass too, though, right?" I joke, resting my chin on her shoulder.

"Oh yeah, no doubt about that," she says with a smirk. The embrace lingers and I feel the shift in atmosphere. Amelia's nervous about something. "Arizona... Are you worried?" Amelia asks, timidly.

"Hmm?" I respond, absent-mindedly.

"That Sofia knows about us," she confirms, pulling back to look at me. "Did you... want to wait longer?"

"No, I'm actually really relieved she knows," I say, honestly. "I just wish I could have been the one to tell her, you know?"

"So, you're not..." she trails off. It's rare to see her this unsure of herself. "You're not having second thoughts about us, are you?"

"What?" I respond, my eyebrows shooting to my hairline. "No! God, no! Of course not!"

"Good," she says, letting go of a breath she'd been holding and giving me a relieved smile.

"Don't ever think that, okay?" I say, firmly. I step back into her arms and leave a memorable kiss on her lips, before tucking a few strands of hair behind her ears. "I love you," I say, calmly.

"I love you, too," she replies, much more relaxed now.

And, after another quick kiss, I set off on my way to my first consult.

...

Something weird is happening is happening around me. Many people are gathered around Alex whilst he takes a phone call behind the reception desk. This seems more serious than your average day on the paediatric floor.

"The hospital is on lockdown," Karev shouts as he hangs up the phone. "We're sealing the floor. No one leaves, no one enters."

"What's going on?" I ask, quickly.

"Orders from downstairs," he explains, handing his chart to our receptionist, Sarah, and heading to check one of the kids.

"Alex..." I say quietly, pulling my friend to one side. "Do you remember the last time the hospital was this tight on security?" For a split-second, his eyes turn dark as he realises what I'm saying.

"Gary Clark..." He trails off, his eyes turning dark at the memory of the mass shooting that took place within these walls. Subconsciously, he moves his hand to his lower chest, covering the area he was shot.

"Yeah..." My eyes fill with tears and I grab Alex's arm as I remember the little patient I was trying to protect. Her name was Ruby. She has a burst appendix. He was only a few feet away from us, the gun dangling from his hand. I used my body as a shield, bracing myself for a bullet in the back. I don't know how it happened, but Callie managed to get him to leave, all three of us left unharmed.

"We can't jump to conclusions," he decides, returning to regular bad ass Karev.

I want him to be right. I want to just tell myself that I'm being completely paranoid. But, my gut tells me different. Something's happening. Something bad.