Almost Slip Up

We're pushed up against the wall,
Your body against mine.
Eyes closed,
We are moving together.
Your breath hot against my neck,
My hands in your hair.
I start to whisper a name,
But right before I do I catch myself.
It wasn't your name I was going to say,
It was hers.
That's when I know this isn't what I want,
You aren't what I want.
I untangle my hands from your hair,
Put them against your chest.
And gently push you away,
I need to stop this before I'm in to deep,
With no way out.
I just don't know how to tell you,
You aren't what I want.