Over The Hills?

Could it be the end of the road for The Hills?

Amid constant feuding, salary demands and diva behavior, the current season of the MTV smash may be the last, sources close to the hit show tell OK!.

“No one gets along anymore,” an insider explains. “Whitney moved to New York, Audrina can’t stand to be in the same room as Lauren anymore and they all want more money.”

Things got ugly at L.A.’s Winston’s on Oct. 9, when Audrina Patridge, 23, confronted Lauren Conrad, 22, while she filmed a scene for the MTV series with her BFF, the unpopular Lo Bosworth, 22.

Audrina stormed in and sat down at their table,” a fellow clubgoer tells OK!.

“Lauren looked uncomfortable and like she was going to be sick.”

As Audrina attacked Lauren over her alleged fling with her ex Justin “Bobby” Brescia, 25, a tearful Lauren yelled, "Because of you, everyone thinks I’m a bad friend and a slut!” says the source.

Now, a pal of Lauren tells OK!, “She isn’t sure what to do. As of right now, she hasn’t signed on for the next season.”

Meanwhile, Audrina told TV host Ellen DeGeneres she may not return to the show, saying, “I’m trying to decide what to do.”

Sources also tell OK! that Audrina has refused to film scenes with Lauren until she gets a pay raise.

And what about Lauren? Her friend says, “It might be time for her to move on.”

Salary envy is one of the issues causing a rift between the stars. Here's what they earn per episode:

LAUREN: $75,000

HEIDI: $65,000

SPENCER: $65,000

AUDRINA: $35,000

BRODY$10,000