Ink POV

  "Ink look out!" Dream shouted.
  I looked up and sure enough, Error was trying to tie me up.
  I quickly ran further from him and slipped. I opened my eyes and I could hear Dream and Blue trying to protect me and fight the others.
  I stood and fell again. Error caught my leg.
  "Ugh, just get it over with." I said.
  "Hold it Squid." He said to me. "Normally you at least try to put up a fight. What gives?"
  "...awww you care about meee." I teased.
  His face turned bright yellow and he looked flustered and angry.
  "N-No I don't!" He shouted.
  I giggled and he blushed even more. What? Ohhhh I see what's going on.
"Dawww you have a crush on me Glitchy." I said.
"I-I Uh.." he crashed.
Which means I was dropped Face first into the ground.
Nightmare dragged him through the portal.
"..did we win?" Blue asked.
"I...Think so." Dream answered.
They laughed and laughed as Dream spun around with him. I watched them. Is this what love is supposed to look like?
Dream brought Blue close to him and kissed him. Blue kept laughing.
"Dreammmm put me down!" He whined playfully.
I smiled and decided to leave them alone.

Error POV (concept of Error and Nightmare being like a father and son was inspired by doodis2014 thank you!)

When my eyes were finally cleared I was in my room. Nightmare sat by me.
"He made you crash again?" He asked.
"Yeah." I smiled and blushed a bit, remembering his laugh. "He's a bit...odd and, I don't know why I like him."
"Error, listen, you are my favorite because you are the least annoying. So I'm going to give you some advice."
  "Which Is...?"
  "Man up and TELL HIM. YOU LIKE HIM." He said.
  "...or I could kill him. That'd be easier."
  "Error, I didn't raise a pussy. Don't act like one."
"Maybe you did." I mumbled mockingly as he left.
Then again he's probably right. I thought for a while and teleported to Ink. He was drawing in what appeared to be his room.
"...hi." He said.
"...hey." I replied.
"...L...listen about earlier I-"
"You were right."
He blushed a bit and smiled.
"I was?" He asked. "Oh, you have no idea how relieved I am. I.. I like you to." He said.
"...so...does this mean you're my boyfriend?" I asked.
He giggled.
"If you want. I'd love that."
I nodded.
He smiled big and jump hugged me. I blushed immensely but, hugged back anyway.
"Y...you're not lying right?"
"I swear on all the multiverse, that I love you." He said.
A few years later I finally had the guts to bring him over to base.
"It's very... cozy." He said.
"You don't have to pretend to like it." I told him.
Luckily nobody else was here at the moment. Nobody even knew we were together. Not even Nightmare. And I tell him everything.
"I'll be right back. Stay here I want to give you something." I told him.
He smiled.
I went to my room and not even a minute later I hear a crash and yelling.
I ran back to Ink. My 'friends' were trying to fight him. And he wasn't doing anything.
Just dodging. I got scared and didn't know what to do. Nightmare walked in and looked at me, then at the others.
"Enough!" He yelled.
They all stopped. I brought Ink to me. He just glared at them.
Nightmare rolled his eyes and told the others that Ink was fine being here if he was with me.
I gripped Ink's hand tightly. He looked to the ground. Then he left. I followed him.
  "..Do you want your gift?" I asked.
  He sat down.
  "Sure."
He didn't seem excited. I stay by him. I took a deep breath and pulled him close to me. He blushed a little and laughed softly. I smiled and kissed him.
"That was a nice gift." He said
"That wasn't your gift." I told him.
"Oh? Then what could it be?"
I took the ring out of my pocket and showed it to him.
"Marry Me."

"Yes!"