Two Faces in a Crowd

I see a face
in a familiar place. 
I know not of she and
she not of me. 
I look and see then she look at me. 
The crowd is about and near
but it appear we are the only two here. 
We feel the hard truth to reveal
a rush of sort and elate
the two of us do relate. 
But sense we each have a mate. 
Ohhhhh I sigh, 
in our lanes we must stay
but with hidden hope
the look, this pleasant feel
will return another day.