Spike's Loves
Cecily-  Cicily was a snobby bitch.  She was Williams first love and she turned him down.  
Drusilla-  Can everyone say Crazy.   Cuz that pretty much sums up Dru.  She is Spike's sire and the love of his unlife.  They were together for 100 years until she dumped him for a Demon.
Harmony- Harmony was a ditz.  She really wasn't one of Spikes loves.  He didn't have any real feelings, he just used her.
Buffy- And then there is Buffy.  She is the Slayer and use to be Spike's mortal enemy.  Now Spike is madly in love with her.  But she, being blind, dosn't love him back.  Or so she wants you to think.
Spike & Buffy Forever