This idea came to me earlier today so I decided to write it down and see where it went :) enjoy!

Effie turned the yellow envelope over and over in her hands, attempting to conclude whether she had the desire to open it.
The postage mark indicated the letter had came from 12. There was no return adress on the envelope, but she had no trouble deciding who this letter was from. Of the three people she had formed a close bond with in 12 over her years as escort for the district, two of them regularly spoke to her over the telephone. That left one person. One man she was unsure she wanted to hear from. Yet somehow she desperately missed his company. Nothing had ever happened between them. They merely supported eachother when their tributes were killed in the Games. He'd held her as she cried on occasion, but that was the closest they ever got to any sort of affection between them.
Effie reached for her letter knife on top of the mantlepiece and carefully sliced the top of the envelope open in a smooth line. Her fingers carefully grasped the edge of the paper inside and pulled it out.
Her eyes skimmed over the top of the letter, where she found the adress, confirming her suspicions about the sender.
" Mr. H. Abernathy
50 Victors' Village
District 12"
Effie pondered for a moment as to why his house number was '50'. Then she realised that house numbers are assigned in the Victors' Village dependent on which Games the inhabitant had won. Haymitch, of course, had won the 50th.
She looked further down the page and found Haymitch's messy, drunken scrawl. She began to read:

"Effie,
Three years, huh? Seems longer than that. I thought it was about time I wrote to you to check up on how you're doing. Nothing much has changed in 12. Katniss is pregnant. No doubt she told you. Peeta's thrilled. I'm not. I dont know how I'll cope with a screaming baby in the house next door. Well, the kid will have to compete with my geese for noise. That's right, I'm raising geese. Are you proud of me, Eff? You always told me to do something with my time other than spend it with a bottle. So here I am. I know it's not much, but it keeps me busy.
I dont know whether I should be expecting a reply. But, you know. Feel free to write back, if you want. I'm still in the same place, but I wrote my adress at the top just incase you forgot. It's been such a long time. Anyway, I just wanted you to know that I'm thinking of you.
- H
P.s. I'm still trying to forgive myself."

Effie read the letter twice more before setting it down on the table. From the sounds of things, Haymitch was making an effort to do something with his existence. Granted, Effie was proud. But she couldnt shake her mild resentment for him that she's harboured over the past 3 years. Since he left her in that hospital.
She shook the memory from her mind and got back to the task at hand. Should she write back? Return his good wishes? She had learned from a young age that ignorance was improper, so she ought to reply. However, the man she would be replying to was an ignorant one. Perhaps they cancelled eachother out. Her ignoring his out-of-the-blue contact would be beneficial to both her sanity and mental wellbeing.
And yet...
She hurried upstairs to her study, where she selected a sheet of her pre-headed paper and a pink pen.
She set them down on the coffee table in her living room before heading into the kitchen to make herself some lemon tea.
As she filled the kettle, thoughts of what she would write filled her head. There was so much she wanted to say to him, but not all of it would transfer well over a letter. She decided she would keep her reply simple. Let him know she was working with children injured in the war. Tell him she was proud of how he'd found something to do with his time.
She had the structure of the letter planned out in her head as she settled back onto the sofa, tea in hand.
The pen dangled between her fingers as she figured out where to start. Then, she brought the pen down on the paper and began to write.

"Dear Haymitch..."

That wasnt a very long chapter. I just wanted to get the idea down before J forgot! Anyway, I hipe you enjoyed it and please review, it helps me a lot :)