Short fiction class project 1

So a few years back I took a writing class at SMC focussing on the short story. Lately I've been thinking about writing and I've been re-reading old writing projects, focussing on my work for the class. It's better than I remember, and I feel safe enough sharing this here. So here's the first assignment from that class:
Note: this is fiction

Assignment #1 2011.02.28

Somewhere in suburban Chicago stands Her house. In the yard there’s a tree, Her tree. Nestled in the arms of Her tree is a treehouse and She lives there. He comes home from school, changes into play clothes and climbs into Her world. She emerges from the shell which shields her from the world. She becomes the girl and leaves the boy outside. She spins around, eyes open, and the world becomes a zoetrope. She collapses, dizzy, and lays panting on the floor for a moment before attempting to sit up.

Here She is herself, beautiful child with soft, flaxen hair and eyes of sapphire blue. He doesn't exist here. Her parents cannot understand Her. They look at her and see him, so She must stay here. They won’t let Her into their house. She makes them angry, makes them yell. But here in this splendid isolation, away from them, She is free to be.

Sometimes She reads. Sometimes She sings. Sometimes her neighbor comes over and they play together, two girls with Matchbox cars and long neon orange strips of plastic track. Today she has a book and she sits in a sunlit corner and loses herself in another world.