Have you ever wondered why Spike's always been different from other vampires?
The others seethed with hatred. They exuded anger. They exemplified rage. He thought maybe he could rise to such a level, with motivation. He heard whispered words like “revenge” and “passion” and thought such things might spur him on.
But for now he was an anomaly; the less than demonic demon. He didn’t worry. He might be lonely, but it was not as though the others led social lives.
One day, he felt a change come over him. Like so many others before in the Netherworld, he started to vanish. He opened his eyes in an alleyway, looking at a woman, for so he knew her to be. In the last split second before his personality integrated with his human host, he thought, “This is going to be...neat.”