For Luba_the_fluffy_fox who came up with this idea and plot.

Ink POV
  Error and I were currently in Outertale. I was drawing and he was doing something with a puppet. Dream, who was my guardian as we were only children wasn't there at the moment. Probably with Blue.
"We'll be friends forever right Error?" I asked, looking up at him.
  "Duh. Why wouldn't we be squid?" He smiled.
  "Nightmare always tells you things change."
  "Nightmare isn't always right. You're my best friend. We gotta be friends forever."
  He gave me the puppet. It was me! I smiled.
  "You're getting really good at this!" I said.
  He laughed.
  "I guess."
  I hugged him.
  And now, as I hold the old thing in my hand, I see just how many years ago that was. I always loved this puppet. And I truly believed we'd be friends forever.
  I look out my window. It's night time. Ten o'clock to be exact. I go back to the puppet. It's worn and one of the buttons fell off of it but, I still cherish it.
  Blue walked into my room.
  "Thanks for knocking." I said sarcastically.
  "Sorry kiddo."
  "I'm twenty three. Please stop calling me kiddo." I asked.
  He laughed.
  "Nope. Anyway, how've you been today? You're emotions are ok? No bursts?"
  As I was about to answer I began sobbing and I couldn't stop it.
  "Ok, I'm going to say yes."
  He stayed with me until the burst was over.
  "Blue...I-I think they're destroying again." I said.
  "Yeah, I feel it to. I'll go get Dream. We'll meet you there." He said.
  I nodded, put the puppet on my bed, grabbed my paint brush, and teleported to the battlefield.
  Underfell? Jeez. Wonder what Red did. I saw Error first. I felt sad around him now. Ever since we became enemies I can only feel certain emotions around certain people.
  I miss the calmness I felt around him when we were friends and I was emotionally stable. I miss everything about being friends with him.
  I snapped out of my thoughts when I saw him staring at me. His friends saw me to and they all came at me.
  I created a shield around myself. It should give me enough time to think of my next move. Ok ok, Errors strings can catch me quick. I'll need to teleport. Not in knife throwing range or blaster range.
  I did just that. The shield broke and I see Dream and Blue in front of me.
  "Stay back Ink we got this!" Dream said.
  Instead of listening I went to fight Error. He looked at me with so much hatred. I knocked him down.
  "What did I do to make you hate me?" I asked.
  "You-"
  All of a sudden I burst out laughing. No! No! Not now! Anytime but now!
  He looked annoyed and punched me. I was out like a light.
  I dreamt of the day when we separated.
  I was fourteen then. We both had to make a choice. Protect and create or to cause chaos and destroy. And without telling him I chose create.
  "This'll be so much fun Ink! I'm sure my friends will tolerate you."
  "About that..."
  "Ink, tell me you didn't..."
  I stayed silent for a few seconds.
  "Tell me you didn't!"
  "Error I-I'm sorry but I-I think I made a good choice for me-"
  "You idiot! We promised we'd stay friends!"
  "Hey, this doesn't mean we can't be friends."
  I tried hugging him but he pushed me away. I didn't know weather to cry or keep trying to tell him I want to create. He left and that was the last time I'd seen him as a friend.
  I woke up. I'm in the anti void. I try standing but my leg is fractured. So is my left arm. Good thing I'm ambidextrous.
  Strings are holding me down. I can't move. I can't do anything but beg for Error to let me go.
  "Shut up!" He said.
  I started crying. It wasn't an emotional burst. I actually felt sad.
  "Can we please just talk..."
  "No. You completely betrayed me. We were supposed to be a team Ink. Stick together. And you threw all of it away."
  "I could say the same thing about you! I told you then and I'll tell you now I've always wanted to be a creator! To protect everything that people love and made. I never, NEVER, gave you any indication that I wanted to hurt people."
  He kicked me, cracking my jaw and making my mouth bleed. I don't think there's any getting through to him.
  Laughter started. I hate this. It always comes at the worst time. And it hurts my jaw now since it's damaged.
  "Stop laughing!"
  He kicked me again and I still kept laughing. Not that I had a choice. This went on for several minutes. I could hardly breathe from being kicked and laughing. I hate everything about this situation.