When I really think, it hurts because I didn't just lose a relationship.  I lost my future.  I lost a big part of my heart.  I lost love.  I lost that person you grow old with.  I lost the family.  I lost the joy that came with waking up each morning.  I lost the excitement of looking forward to life.  I lost my best friend.  I suppose she wasn't just a person to me, she was me and you don't really know what it is to lose something until you lose someone you love more than yourself.