Flies in the head

She keeps moving
The left hand
Rhythmically right to left
Shooing away flies
Which are not there
Her head suddenly shakes
Like saying no
To a frightening thought
Or a terrible temptation
The feet shuffle up and down
As if measuring the room
And getting it wrong every time
The eyes suddenly catch the mirror
She gets it off the wall
Takes it closer to the window
Where there is more sunlight
Peers at her reflection
Finds a smudge no one can see
Asks everyone in the house
If it is noticeable
Or makes her ugly
"See, that must be the reason
Why he left me, why else
Will he leave me."