Oh. That's great storytelling. So well-written, and different font colors for imagination and dark reality work very well. The story really makes you feel bad for Sadie and get the message :c
I really liked how you've shown the characters. In some parts it feels like the unicorn is a separate character, and we gladly choose soothing and warm words to cheer Sadie up, in other parts it starts to feel like talking to yourself. And those changes are shown quite well.
In my opinion this project really doesn't need any graphics or audio, but I was a bit confused how to rate those aspects for the jam, eheh.
Overall, wonderful narrative part, good message, sweet main character with sad story. You've done a nice job!