I'm always interested to hear how people came to the fandom. I didn't start watching until after S6, although that was partly because we didn't get UPN and partly because I tended to lose interest after S3. My roommate was the one who got me hooked. I think she fell in love with Spike first, and then introduced me to fanfiction. Heh. I think I've outstripped her, as far as obsessions go.