Then I was alone, all alone, you left me.
Where would I go now? How could I live now?
I loved you, I love you, and you knew. Then you left me
But I knew you loved me back
How could you love me if you left me like that?
And then I saw who you were with and I understood.
Face without a name
http://www.poemhunter.com/poem/hopeless-love-6/