The morphing villians

Spike is still a vampire, and he still has that chip in his head. He now has a soul, and it’s a bit like Hannibal Lecter suddenly gaining a conscience. Remember, Spike was a nice (if pathetic) chap in life, given to writing bad poetry, before Dru bit him. So I’m sure he’s feeling a boatload of guilt over his actions over the years. No wonder he tried to cut out his soul (you’ll notice that the scars are where that demon touched him to return it).