My Shadow

She is cowardly as she always hides behind my back when anyone comes around
Some days she is tall and some days she is short
I like having conversations with her because she is really good at listening to me
She is always by my side and there to protect me
She flies around the room at night while I sleep
But never really seems to be happy
Or sad
Or even excited
But she is my shadow
Pretty
Dark
Friendly
Mine