Lisa Vanderpump Dreading 'Housewives' Reunion Show? 'They've All Turned On Her'

"Real Housewives of Beverly Hills" star Lisa Vanderpump is said to be dreading the upcoming reunion show taping, as she reportedly fears that her co-stars are plotting to gang up on her.

The British restaurateur, 53, reportedly had a falling out with her two closest friends on the show, Brandi Glanville and Yolanda Foster, in addition to her recurring feud with her former best friend Kyle Richards. A source claims that as a result of this, she now feels more alone than ever.

Throughout seasons three and four, viewers have watched Vanderpump and Richards, 45, go head-to-head due to lingering tensions stemming from unresolved feuds.

Reports claim Glanville, 41, and Foster, 49, have since formed an alliance with Richards, which has left Vanderpump nervous about the reunion show.

"The reunion show is scheduled to tape after the holidays, early January. Lisa has told producers she is absolutely dreading it because she feels that all of the ladies are going to attack her," a source told RadarOnline.com.

"She has always managed to stay above all the drama, but this year has been very different. Lisa had enjoyed being the most popular cast member and she is afraid that will be in jeopardy after the reunion show airs," the source explained.

While filming scenes in Puerto Rico, Foster and Glanville reportedly banded together to confront Vanderpump about allegedly being a backstabber. The trio ultimately ended up in a nasty fight and Vanderpump is concerned that the reunion show will rehash old wounds.

"It will be fantastic television, but Lisa truly believes the entire cast is just going to gang up on her," the insider said.

"[She] doesn't have any friends left on the show. She doesn't know why the ladies have all turned on her," the source explained.

Season four, which premiered on Nov. 4, also saw the return of Kim Richards, Yolanda Foster and two new cast members were introduced, Carlton Gebbia and Joyce Giraud.