Hours after she announced she is leaving The Real Housewives of Beverly Hills, Adrienne Maloof ignored cast member Brandi Glanville when the two reality stars saw each other on Monday.

The two stars - who have had bitter disputes and thrown accusations of a lawsuit throughout season three of the Bravo show - avoided seeing each other at the Polo Lounge in Beverly Hills, according to Us Weekly.

A source told the magazine, "Brandi was clearly uncomfortable but laughing" while catching up with two male pals.

"They didn't acknowledge each other at all," the source said.

Maloof "was having fun with her girlfriend and talked to Al Pacino," whom she exchanged business cards with. The source added that when the Maloof went to the bathroom with a friend around 10:15 p.m., "Brandi literally followed them into the bathroom" but Maloof ignored her and walked out.

"It was so creepy," the source said.

An insider close to Glanville, 40, confirmed the Bravo stars "didn't even look each other in the eye" and tried to avoid one another, adding, "They were in the bathroom together at one point and didn't even say a word to each other."

Maloof confirmed on Monday that she quit The Real Housewives of Beverly Hills and will not return for its fourth season. She also did not attend taping for the season three reunion special. A source told TMZ Maloof did not show up because she knew her divorce from Paul Nassif would be topic of conversation and because of their divorce agreement, she cannot talk about it.