Lisa Vanderpump appears to have suggested she is being bullied by her co-stars as production continues on the upcoming ninth season of "The Real Housewives of Beverly Hills." On Twitter, days ago, Vanderpump was confronted by one of her longtime fans who encouraged her to remain strong amid "bullying."

"Courage [Lisa Vanderpump].....remember, stand up to bullying," the fan wrote. "You have an army of fans backing you," she added. For years, Vanderpump has often spoken to this particular fan and frequently responds to her questions and sentiments. This time around, she responded with a simple pink heart-emoji, thanking the fan for her ongoing positive thoughts.

Vanderpump also sent a pink heart-emoji to a fan who told her, "Yes you do," in reference to the army of people she has rooting for her to get to a better place with her "Real Housewives of Beverly Hills" co-stars.

Throughout the past several weeks, many reports have been claiming that Vanderpump is no longer on good terms [VIDEO] with her co-stars, including Dorit Kemsley, Erika Girardi, Kyle Richards, and Lisa Rinna. On social media, she hasn't been seen with any of her co-stars for weeks.

Lisa is skipping major events

As her co-stars film the ninth season of the Bravo TV series, Lisa Vanderpump has been MIA [VIDEO] during a number of major cast events, including Camille Grammer's bridal shower and Erika Girardi's recent concert in Los Angeles. As fans may have seen earlier this week on Instagram, the women, aside from Grammer and Denise Richards, were seen attending Girardi's "The Pretty Mess" tour on Sunday night.

Denise Richards was added to the Los Angeles-based cast of "The Real Housewives" over the summer when filming on the new season first began. Since then, she's been seen around town filming with the other women.

Lisa has a busy life in L.A.

In addition to her full-time role on "The Real Housewives of Beverly Hills," Lisa Vanderpump is also a full-time cast member on her Bravo TV spinoff series, "Vanderpump Rules," which is based out of her West Hollywood restaurant, SUR. As fans well know, SUR is just one of Vanderpump's many restaurants in the area. She's also running Villa Blanca, PUMP Lounge, and TomTom, which opened just weeks ago.

"The Real Housewives of Beverly Hills" season nine is expected to begin airing on Bravo TV sometime later this year but a premiere date for the new episodes has not yet been set.