Summerlilly
Covert Superhero
Honestly? I don't think Spike ever hated her. I think he was always obsessed with her, and then his obsession turned to love in the later seasons.
In rewatching this season I'd have to agree. I think from the very start he was intrigued by her. Honestly, why didn't he try harder to kill her? He bragged about how he was going to but he also ran away like a coward more than once. Plus, while he was in the wheelchair useless, Angelus was obsessed with her. Maybe he got his first taste of obsession then. I think it seemed like he hated her much more later in the series, maybe partly because unconciousley he was obsessed from the begining....and then of course the love for her finally overcame the hatred.