Shane claims to have slept with over a thousand people, sometimes abuses hard drugs and is impulsive. Shane repeatedly destroys relationships when they are going well (Moennig has called Shane 'a self-sabotager'). An example of this is when she becomes involved with the wife of an influential Hollywood business investor named Cherie Jaffe, who takes a chance on bankrolling a salon for her. The investor thinks she has also slept with his daughter but this turns out to be a fantasy on the part of the daughter. In the third season, Shane cheats on her then-girlfriend Carmen when Cherie makes a reappearance, and in the fifth, sleeps with another woman while househunting with Paige.