The stalker

I know all what there is to know about her. Her favourite perfume, the way she tilts her head on the side, whom she sees. The way she answers her phone, not talking, just listening. She changed her number many times but it's only to play games. Tonight it's her birthday, I call her. But why is her phone ringing in my room? The light comes on, she's here, the barrel of a gun trained on me.
She fires. My knee cap explodes and I howl with pain.
'Pay back time', she says
It's going to be a long night.