Lisa Vanderpump skipped "The Real Housewives of Beverly Hills" reunion amid drama with her co-stars.
Cohen filmed the reunion with "The Real Housewives of Beverly Hills" stars on Wednesday.
He spoke to friend and TV personality Anderson Cooper in an Instagram Live video during a break in filming.
"The reunion is going great. It's major. Lisa Vanderpump's not here," Cohen told Cooper, who asked if Vanderpump had attended the reunion at any point.
Cohen made a face but didn't answer directly."There's major things happening... There's trouble afoot in Beverly Hills," he responded. "You know who is here? [Camille Grammer]."
Page Six said Vanderpump attended Los Angeles Mayor Eric Garcetti's L.A. Pride Garden Party instead of the reunion.
Vanderpump has been at the center of the #Puppygate scandal in Season 9, where she was accused of leaking stories about co-star Dorit Kemsley.
Bravo skirted reports of Vanderpump's exit from "The Real Housewives" in a statement Wednesday to Bustle.
"There is so much great drama and fun still to come this season including the ladies' trip to France, so before we focus on next season, let's see where this one takes us," the network said.
Vanderpump has clashed with Grammer, Kyle Richards and other co-stars during the season.
Grammer said on "Watch What Happens Live" in May she regrets making comments about Vanderpump's teeth.
