Ariana Madix was on Raquel Leviss’s side long before she found out about her affair with Tom Sandoval. On Wednesday’s episode of Vanderpump Rules, Ariana tried to broker peace between Raquel and Lala Kent after their girls trip went awry when Raquel called Lala a “mistress.” The comments came after Raquel, 28, became upset that Lala, 32, slept with her …