What do you think happened to Spike's mother?
I know that she isn't mentioned in the series, but I always had a headcannon Spike was momma's baby and he'd still see his mother if he can. I don't think that she is dead, but she may have kicked Spike out of the house to be more independent.
Are you ready or not? It's only up the street. Everybody's dancing. Everybody's on the beat.