How can...

How can something so wonderful just end
How can you go from someones world to only a friend
How can the door just close, just like that
How can you walk away and not look back
How can i not be good enough for you
how can you not trust me when all i was, was true
How can you be shown an eternal love if it was me
How can i give you eternal love, if you say we can't be
How can i still let you hurt me yet i am still there
How can i hate you when i promised I'd always care
How can i let you go and slip through my hand
How can how can you leave me I'll never understand