[Spike's hand fists in the back of John's hair, pulling his head back so he can look him in the eye.]

You're neither a witch nor a monster. I've seen both. I am one.

[There was a shifting of skin and bone, and then the demon that Spike shared a body with was peeking out, showing its face so John could see it.]

I'm a monster. If anyone knows evil, it's me. I kill because I like it. I kill because I feed off it and if they suffer, if they scream, if it hurts, I love it all the more. You want to kill me? Go ahead and try. Maybe you'll actually get it right. But you can't hurt me. Not really. That's already been done and I managed to survive it. It's never going to stop hurting, yeah? Real love doesn't. It's just going to get familiar. Like an ache when it rains, flaring up from time to time. Whatever you were before her, you still had her. That's not a curse, mate. Not knowing love? Not having that moment ever in your life? That's a curse.