Brandi Glanville and LeAnn Rimes have put the past behind them! In an upcoming episode of The Real Housewives of Beverly Hills alum’s podcast, “Brandi Glanville Unfiltered,” the reality star revealed she’s grown close with the singer despite the songwriter having an affair with Eddie Cibrian while Glanville was still married to him. Glanville and Cibrian split in 2010 after she found out about the pair’s relationship. However, over the years, Glanville shared how the trio have become a happy “modern family” who even spend the holidays together. “We do have a really good relationship and I cher…