Katie Maloney has slammed Rachel Leviss’ explanation for her cheating scandal. The 29-year-old beauty quit ‘Vanderpump Rules’ after it emerged that she had a months-long affair with Tom Sandoval, but Katie has now rubbished her former co-star’s justification for her behaviour. During an appearance on the ‘Disrespectfully’ podcast, Katie explained: “She’s moving the goalpost once again, everybody. I kind of have to chuckle at it because I don’t know what she’s trying to accomplish. “But it is insane because she wants to talk about how she misses her friendship, but initially none of us were her…