On Being in Love With Someone Who Can't Love You Back

I wish I could accurately describe what the feeling is like. Being in love with someone who can't love you back. It's tragic, it's depressing, it's frustrating.  It makes you wish the situation could be changed, the dice re-rolled, your life reworked.  It makes you wish you weren't you. It makes you realize how empty inside you feel from being single.  I know I should be stronger, feel more self-actualized, have higher self-esteem, but I don't.  I'm in love and my heart won't let go, even though my head says go.  It runs through the paces of if's and when's, hoping and praying, for moments that will never happen.  You realize all your imperfection in one glance and realize that all you want is for someone to love that imperfection back unconditionally.