1) He has already over come the awkward situation of making small talk
with Buffy's mom.
2) They both have bleach blonde hair
3)Spike is a major Hottie
4)Buffy just can't overcome this attraction she has towards
immortals
5) They could make really interesting conversation. Example:
6)He thinks she is a cutie
7)Buffy would never have to worry about not knowing when the next time the Hellmouth
is planning to come forth
8)She would never have to worry about her boyfrined getting skin cancer from the sun
9) Spike wouldn't have to worry about being attacked by the Slayer
10) They Could start a band
Spike: "I really don't fancy you going about and turing
my mates into dust, pet."
Buffy: "Sorry, honey, but after you sucked it up with my Math Teacher, you had it coming