The Yoko Factor

The Yoko Factor is the 20th episode of season 4 of the television show Buffy the Vampire Slayer.

Adam convinces Spike that he will take his chip out if he helps him get Buffy where he wants. Spike agrees and sets out to distance the Scoobies from each other by inventing lies he attributes to others. He tells Xander that Buffy and Willow see him as a dropout, makes Willow believe that Buffy is prejudiced against her lesbian relationship with Tara and also makes Giles believe that Buffy doesn't need him now he's not her Watcher anymore.

Quotes and trivia
Many people blamed Yoko Ono for causing The Beatles to break up. Many others, however, believe that she was only a lightning rod, that other factors sowed the seeds. This is analogous to Spike's sowing dissention within the Scooby Gang.