Deja vu

I've been here before.
Some time in the past.
Or was it the future?
I think I was tucked up in bed.
Or possibly at school.
But I've been here before.
I remember the positions.
Constellations of bodies.
Snooker balls.
My heart has seen you.
Because I've been here before.
The look of your voice.
The sound of your eyes.
It felt familiar.
Time tells me it's new.
But you don't feel new.
I've been here before.
Loved you.

Do I know you?