Okay. I have a list of all the requests I liked. This one is first. The next will be another. And so on.
Suggested and plot by GrayWolfie12
I did change it a bit.

Ink POV
  "So, you're sick? Is it... is it bad?" I asked.
  "It shouldn't be to bad. It's highly curable. Don't worry though I'll still come here even if I can't order anything." Error replied.
  I smiled a bit.
  "I really only come here to talk to you... other than Geno you're the only person I trust enough to rant to."
  The last customer left and I started cleaning up. Error helped me even though I asked him not to. It was sweet.
  "I'm going to walk you home. Never know what could happen at night when you're alone."
  I giggled.
  "Oh, I'm sure I'd be fine. But, I think I'd like the company." I replied, putting my hoodie on.
  He smiled at me and I locked up the bar. We started the way to my house. It's funny really. I met him two years ago when I started working at the bar.
  At first we just joked around and goofed off. He worked on his computer at the bar, finishing up college this year has been hard on him to.
  I took two years of college and dropped out to work for myself so far I wasn't so successful. I didn't have enough money to buy a shop.
  Error asked me out after a few months and I agreed. And now, as I walk home, I think I know he won't make it.
  He always thinks he can get over something himself but this... he'll try...and...
  "Ink, you ok? You're crying." He said.
  I looked up. Sure enough my eyes were blurred and wet with tears.
  I wiped them away and sighed.
  "Promise you'll get treatment for this..." I said.
  "I'll think about it." He said.
  He kissed me goodbye and I walked into my house. I should've pushed him to do it...

Half a year later

Ink POV
  I opened my mailbox and got mostly bills. I was surprised to receive a letter from Error. I smiled. I love when he does this.
  Surprise mail. Usually saying how much he thinks about me. We have phones, he prefers to write me letters.
 
  "My Inky,
  
   I love you more than words could tell. However, this will be my final letter you you. My love, my soul, I hate to tell you this. If you get this, It means that I have died. Geno will probably get you soon to plan something of a funeral. I'm sorry. I hope you find happiness with someone special and I hope you do well with your shop. A letter is not the only thing in the envelope Y'know. I put something else in it as well.
                  -Love Error."

  I only realized I was sobbing when my tears hit the table. I knew I should've pushed harder. I should've forced him to get treatment.
  I looked in the envelope. An engagement ring and seventy thousand dollars were there.
  I sobbed harder knowing I wouldn't be able to move on... I wouldn't be able to find someone like him.