Memories

Why do some memories have to hurt so much? Why do good memories have to hurt the worst? As think of certain "happy" moments in my past, I feel this pain inside. It's like it hurts to think that something good happened, because I know it won't happen again. When I think of some things in the past, they were fantastic times, but they no longer exist. It pains me to remember that these moments are unlikely to occur again. I wish they could always occur, but these are only memories. They are memories that I must forget.