Has anyone else seen this wonderfully heartfelt piece of graffiti sprayed onto the side of the Sighthill pitches? changing rooms?   I wonder what is story behind it?   Could it be a modern day tragedy of angst-ridden love set within the Sighthill flats?   A race against time before Pam leaves for a new life in Wester Hailes as the towers get ready for demolition?   Or an apology for giving her a black eye and a kick in the funny?   I need to know. I don?t why, but I just do.