Lisa Vanderpump Dubs Brandi Glanville The 'Underdog' Who Bit Me!

Lisa Vanderpump & Brandi Glanville on Access Hollywood Live Lisa Vanderpump & Brandi Glanville on Access Hollywood Live

“The Real Housewives of Beverly Hills” stars Lisa Vanderpump and Brandi Glanville went from Beverly Hills BFFs to feuding co-stars this season on their Bravo series – and Lisa explains why!

The drama heated up between the “Housewives” after Brandi claimed that Mohamed Hadid (a friend of Lisa’s and ex-husband of fellow “Housewives” star Yolanda Foster) slept with “The Real Housewives of Miami’s” Joanna Krupa (and others), thus resulting in the end of Yolanda and Mohamed’s marriage.

“It hasn’t been easy,” Lisa said of her rift with Brandi.

WATCH: Lisa Vanderpump On Her Feud With Brandi Glanville: Will They Kiss & Make Up?

Both Mohamed and Joanna have denied the alleged tryst ever happened.

“I’ve taken a number of hits from Brandi on Twitter and in the press. I’ve never retaliated, however when it comes to attacking one of my friends, I’m going to come out with guns blazing,” Lisa explained to Billy Bush and Kit Hoover on Thursday’s Access Hollywood Live.

Lisa said that when Brandi first joined the Bravo series, she welcomed her as a newcomer, but now things have changed.

WATCH: Vanderpump Rules: Scheana Talks Past With Eddie Cibrian & Is Jax In More Hot Water With Stassi?

“I felt sorry for the underdog, but then underdog turns around and bites you!” she told Billy and Kit.

Lisa was shown footage of Brandi recently exiting a club on her birthday, where she had to be held up by two people and was asked to weigh in on her co-star’s partying.

“Well, that’s not the worst I’ve seen,” Lisa said while watching the footage.

WATCH: Brandi Glanville Talks Real Housewives Feuds & Friends

Adding, “[But,] I’m not here to put her down.”

“The Real Housewives of Beverly Hills” airs Mondays at 8/7c on Bravo.

-- Jesse Spero

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