Spike often displays insight and skills in perception and observation, especially with regard to relationships and personalities, so long as the relationship in question does not concern him personally. This ability allows him to wield powerful psychological weapons as easily and effectively as physical ones. For example, when he wants to create disharmony among the Scoobies, Spike divides-and-conquers with "The Yoko Factor", exploiting tensions that exist under the surface to alienate Buffy and her friends against each other. Spike's skills of analysis allowed him to realize Willow was barely holding it together after Oz's departure even though Giles and Buffy thought she was doing better, to be the first to see through Tara's abusive and controlling family, forced Buffy and Angel to admit that they were more than "just friends" and identify when and why some relationships, such as between Buffy and Riley, are not meant to last, masterfully feeding Riley's insecurities in an effort to sabotage his relationship with Buffy, so Spike can pursue her. He also predicted that Willow would go fighting against Glory after what she did to Tara even though Buffy believed that she had talked Willow out of the suicidal attempt because he would do so if Glory hurt the people he loved.