By Jen Heger - Breaking Celebrity News Assistant Managing Editor

The Real Housewives of Beverly Hills star Brandi Glanville is telling close friends that she isn't the mean girl on the show, but claims the other cast members are jealous of her and she's actually a victim, Breaking Celebrity News is exclusively reporting.

As we previously reported, Glanville, who's Eddie Cibrian's ex-wife, has been partying hard during filming recently, and she's turning into the new mean girl on the reality show.

However, Glanville is now going on the defensive and insisting that Taylor Armstrong and the other ladies of the 90210 are jealous of her and making her life hell.

"Brandi is a very smart girl, and when the cameras start rolling, she really turns on the waterworks. Brandi is now claiming that Taylor is insanely jealous of her and making her life hell. Brandi is turning out to be one great actress because when the cameras stop rolling she is a completely different person. Brandi and Taylor both have been drinking a lot when filming. Brandi says she is drinking to cope with all of the ongoing drama, but she is the one who is stirring it up. Brandi is accusing Taylor and Kyle of talking about her behind her back and spreading rumors about her," a Bravo insider told Breaking Celebrity News exclusively.

Jumping to Brandi's defense is Lisa Vanderpump, "who inserts herself into every situation. Lisa says she doesn't have time for the drama, or doesn't want to get involved. Yet Lisa always seems to be at the center, which she loves. For anyone to believe that Brandi is a victim is ridiculous, she is a very smart and strong girl,