It's no secret that Real Housewives of Beverly Hills star Brandi Glanville is feuding with her ex bestie Lisa Vanderpump, and we finally know why.

Lisa Vanderpump Throws Shade At Brandi Glanville On Twitter

Glanville was married to actor Eddie Cibrian for nearly 10 years, and one of the women he cheated on her with was Scheana Jancan.

Vanderpump, who's supposed to be Glanville's BFF, is still friends with Jancan because Jancan happens to star on Vanderpump's spin off series Vanderpump Rules.

Lisa Vanderpump Says She's Not Holding A Grudge

Vanderpump and Jancan have remained friends after the incident which totally goes against girl code 101, and obviously there's been a rift between Glanville and Vanderpump ever since.

Glanville and Vanderpumps never ending drama has continued to playout a lot this season, but hopefully they can work things out.

Vanderpump recently retweeted on of Jancan's snotty Twitter posts, and it looks like fans are choosing sides.

It's clear that this drama still isn't over, and in a new episode, Glanville and Vanderpump come face to face to discuss their differences about the situation.

RHOBH airs Tuesday night's at 9 p.m. on VH1.

Tags
Real housewives of beverly hills, Brandi Glanville, Reality TV, Bravo