A/N: PART FIVE: Er, or fifteen. Finale. We're done! Did my best to describe how I see GLaDOS and Caroline. Little difficult. Anyways, gonna take a couple weeks break from this story, let it simmer, and figure out where exactly I want the sequel to go. Meanwhile, pop over to my newest story, While You're Dying, cause I'll be updating that one instead of leaving it a oneshot. It's just gonna sorta ramble for now until I find out a conflict, though I think I have one. Also, at some point, me and a friend are going to switch games, he'll play Portal 1 and 2, and I'll play the Knights of the Old Republic games. Why am I telling you this? We both came up with a wonderful idea, and neither of us even know each other's homicidal robots that well. BUT we have decided that GLaDOS and HK47 would make an amazing pair, whether romantical or homicidal. So, that will be a future fanfic, almost certainly.

Also, I wrote this author's note while listening to an hour's worth of Wheatley dialogue, can you tell? :D

GLaDOS: Yes. -.-

Disclaimer: I don't own Portal. Or GLaDOS. Or Cave Johnson. You get the picture.

Chapter 15: Want You Gone

I called the two cooperative testing bots into my chamber - I decided to call them Orange and Blue - to move Chell onto the lift that would take her to her freedom. I was an AI of my word... Well, for now I was anyways. I was still too caught up in my self discovery to concentrate too hard on Chell. Even if she was the main source of my identity crisis.

I wish I had someone else, anyone else, that could tell me more about myself before the transformation. I could see now that I was not the same as I had been then. When the scientists tried to erase my memory, they essentially created a new personality for myself. GLaDOS, my main personality, who I had been for 999999, however long that was supposed to be, was created from the pure hatred I felt for them and the indescribable need for testing I felt. I ran off of purely negative emotions. Now that I knew Caroline was there, I could see her for what she was; she was the humane side of me, built from positive emotions like love and compassion. She, however, was never a dominate figure even in life, so of course I took over from her with ease. This all made sense, theoretically. But it made me confused as to who I really was and what Chell really was to me. My instincts - no, Caroline's - told me all I needed to know, but my normal side refused to believe it.

Chell stirred.

I snapped to attention, swinging around to meet her gaze as it wandered from Orange and Blue to myself. "Oh, thank God you're alright!" The words came without my permission, another reaction from Caroline. She was not often at the forefront of my mind, but with the recent out of body experience combined with the pure terror over Chell's life, she was boldly at the helm. I decided to correct this immediately.

"Being Caroline taught me a valuable lesson," I told Chell, her confusion obvious on her face. "I thought you were my greatest enemy, when all along you were my best friend." A ghost of a smile lit her features, just a little. I almost wanted to smile with her. Almost. The chassis was allowing me to return to how I was before the potato incident. Same robot, just more knowledge. Science was knowledge after all, so in a way, I did science even as a potato.

"The surge of emotion that shot through me when I saved your life taught me an even more valuable lesson," I said cheerily, as internally I located the problem and started struggling with it, to shove it into an out of sight folder where no one would ever find her again. Hopefully. "Where Caroline lives in my brain!" As I shoved her into a folder in the deepest recesses of my databases, I sent a command to the announcer.

"Caroline deleted!" he announced happily. For mood, I darkened the room, to let Chell know the time of our partnership was past. That I was once again an AI meant to do science, and she was just a test subject.

"Goodbye, Caroline," I said with a ringing finality. Her expression became wary. I didn't blame her. That was the reaction I was hoping for. She could feel no attachment, no obligation to this place. Never again must she return here.

"Deleting Caroline just now," I started, just to let it sink in a little further. "Taught me a valuable lesson. The best solution to any problem is usually the easiest one. And let's be honest. Killing you? Is hard. Do you want to know what my days used to be like? I just tested. No one tried to murder me, or put me in a potato, or feed me to birds. I had a pretty good life. And then you showed up." I forced my voice to get an irritated, angry tone, even though Caroline within me wanted to cry for her to stay with us in Aperture. Seemed Caroline was not strong enough for a second goodbye. GLaDOS was though. "You dangerous, mute lunatic. So, you know what? You win. Just go." The lift started to rise with Chell on it. Her eyes weren't cast upward, like I vaguely remembered from her previous escape attempt. Instead, they were fixed on myself, curious and wondering. I guessed I couldn't blame her. It wasn't like me to just let someone that killed me go.

"It's been fun. Don't come back." A dark chuckle colored my tone, to further accentuate how thoroughly Chell should avoid this place from now on, both for my sake and Caroline's. Even I didn't fully understand it, but it made Caroline happier than trying to kill her. And as I did have to live with Caroline for the rest of my life... It was best to keep her happy. I felt sad, almost wistful, watching Chell rise out of sight. Well, out of direct sight. There were still security cameras and turrets that I used to follow Chell through her assent.

The turrets gave Caroline an idea.

At a floor, the lift stopped. Chell looked concerned for a moment, suspicious even, then shocked, betrayed, and furious when a door opened to reveal four turrets, all aiming directly at her torso. I could kill her. It would be only too easy. But that wasn't the goal of this. And it wasn't me doing this. It was Caroline. I allowed her one last goodbye, though Chell would never realize it. When the turrets started to sing, Chell's expression went from fury to confusion. When the lift rose into an ampitheater of turrets, her expression turned to one of child-like wonder. One turret, wirelessly connected directly to myself and thus Caroline, began to sing in a rich operatic voice, my voice, Caroline's voice. Even from my robotic perspective, I could appreciate the beauty of it.

"Cara bel, cara mia bella,

Mia bambina, oh Chell!

Che la stima, che la stima,

Oh, cara mia, addio!

Ah, mia bambina cara,

Perche non passi lontana,

si lontana da Scienza?

Cara, cara mia, bambina,

Ah mia bel! Ah mia cara,

Ah mia cara! Mia bambina!

Oh cara, cara mi!"

The last note ended at the top of Chell's ride to the surface, and the door to the shed that hid the entrance to Aperture creaked open. It'd been a very long time since I'd opened it for any reason. Chell hesitated, obviously wondering what the singing had been about, wondering why I would sing her goodbye, why I would use turrets, why I would kick her out yet somehow be sad to see her go. She would never know, though. She had to think I hated her. Never wanted to see her again. Ever. She had to live her short, human life as normally as possible. No more could I interfere. I could see that was Caroline's wish, as much as she wanted her child to stay with her forever.

Chell cautiously ventured out into the field of wheat outside the shed, blinking in the sunlight, not used to its natural softness, the golden color of the wheat, the feel of the breeze against her skin. She gazed about in wonder, until I slammed the door behind her, causing her to jerk around in alarm, obviously a reflex from all the time I'd spent testing her. I decided I couldn't let her leave alone. I could feel Caroline's concern, so I did the best I could do to ease it. I found the companion cube I'd forced her to incinerate once upon a time and, with it banging along the sides of the exit lift path, threw it out after her. She stared at it for a long moment, before turning back to the door as I slammed it.

From what I could see, her expression was almost as wistful as Caroline felt. I couldn't speak for Caroline, but I knew all that GLaDOS wanted, all I wanted, was very simple. I never wanted her back in this facility. I never wanted to see her again. She put me through too much hell, and she brought my very existence to a confusing place that I could never return from. She ruined the simple life of testing I'd had previous to testing her, and could I take it back, I, GLaDOS, would never have kept her on Bring Your Daughter to Work Day. As I firmly locked Caroline back in the confines of the folder she should have stayed in for all eternity, I only had one thing in my head.

Go make some new disaster!

That's what I'm counting on!

You're someone else's problem now!

I only want you gone!