It seems to me that the girl rejected him somehow, and so he killed her. "The damage is done, the police are coming too slowly now, I would have loved you all my life". Seems maybe she's dying slowly and he's saying if he can't have her, no one can. Also fits with the losing your memory part, if she's slowly dying and losing consciousness. I hope it wasn't meant to be so morbid and I'm misinterpreting it, but that's what I thought first time I read it :\
It seems to me that the girl rejected him somehow, and so he killed her. "The damage is done, the police are coming too slowly now, I would have loved you all my life". Seems maybe she's dying slowly and he's saying if he can't have her, no one can. Also fits with the losing your memory part, if she's slowly dying and losing consciousness. I hope it wasn't meant to be so morbid and I'm misinterpreting it, but that's what I thought first time I read it :\