During their tour to support "Dog & Butterfly", Wilson and Fisher, who were a couple at the time, became estranged. After discovering Fisher had cheated on her, Wilson began dating Michael Derosier. This resulted in tension between the band members, ending with Fisher destroying a guitar onstage and throwing part of it at Wilson in a dressing room. In October 1979, the group voted to oust Fisher from the band; this change allowed Wilson the opportunity to play more lead guitar.