My Job In Love

I don't get to decide when it happens, or where, or why. I just see them and I know. I've been this way for over a hundred years now. Not a soul can see me, sometimes I wonder if the girl I see in the mirror is really myself. I've watched it happen over and over again. People meet and then they let each other go, they see each other on the street and don't even realize that the one person they are supposed to be with is standing right in front of them. Humans baffle me, truly they do, and to know I once was one, that baffles me even more.