Dear Diary... Who am I?

I took her to Fluttershy's cottage. "What's this place?" asked Applejack. "We're at Fluttershy's house." I said. "Who the hay is Fluttershy?" "One of our friends."

"Hey Fluttershy!" I said, walking in. "Hi, Rainbow! How's Applejack Doing?" she said. "She's doing great! I just hope I can get her to remember before she completely forgets everything!" I told her.