When Twilight was asked to go to Ponyville, she didn't really care that much about her friends that she left behind. In fact she only remembered when Spike told her a few years later. An old friend of hers decides to write a letter, about all the things she wanted to say, but couldn't.
Before the events of "Amending Fences"
Disclaimer I want to say first of all that these ponies aren't my own creation. They fully belong to Hashbro and DHX Media. Also sorry if this sounds similar to any other stories. I came up with this idea on my own and I if it is then it's because I didn't read them at the time of submission.