He couldn't save his mommy, so he's saving his other women instead? And Dru was kind of his mommy, with his real mother gone she became his new mommy, the new center of his universe. The one he could dote upon. Also, I don't think Spike's much interested in the regular fodder. He likes them special, I'd think. The ones he actually likes anyways.

No one can claim mommy doesn't play a big part of who Spike is. I mean, when he came back in "Lover's Walk", did he kill Buffy's mom? No. He had hot cocoa. Now if you look at his mom's fascial bone structure, it's very similar to that of Joyce. That was the first thing that struck me when I saw that flashback episode. Does explain a lot, me thinks...