Ghosts

What is it about night time that drags up past memories? The memories I would prefer not to remember than anything and yet there they are. They all attack me, coming in waves and leaving a bitter taste in my mouth. Usually its a memory or something I though might have happened in the future between an ex and I and it just becomes something I bang my head against the wall to. I mean they're all (as far as I know) happy and carrying on with their own lives so why do they have to still plague my brain? This is me assuming of I don't pass through their minds but yeah. I dunno. It just sucks and makes for a stupid night. Bleh.