Denise Richards and Lisa Rinna won’t be burying the hatchet any time soon. During the Wednesday, March 6, episode of Watch What Happens Live, the Wild Things actress, 53, was asked where she stands with her former costar after their blowout feud on The Real Housewives of Beverly Hills. “Lisa Rinna and I are not friends,” Richards made clear about the Melrose Place alum, 60, who spread a rumor that she had cheated on her husband, Aaron Phypers, with Brandi Glanville. When Andy Cohen questioned the Drop Dead Gorgeous actress about when the last time she talked to Rinna was, she explained, “I spo…