'RHOBH' Kyle Richards & Her Sisters' Feud Revealed- Is Mauricio Umansky the Reason?

Real Housewives of Beverly Hills star Kyle Richards might be at the center of a family feud with her sisters, Kathy Hilton and Kim Richards, but could the fighting actually be about the men in the girls' lives. Well the Bravo star has talked about her relationship with Kim and Kathy on TV, but it might actually be her husband Mauricio Umansky that could be the reason for the rift between them.

During last week's episode of RHOBH, while Lisa Vanderpump and Ken Todd joined Kyle and Maurico on an Italian vacation, it was revealed that Mauricio was not invited to his niece Nicky Hilton's wedding, according to E! News.

Well Radar Online dug a little deeper and found that the reason for this might be due to some resentment between Umansky and the Hiltons.

A photo posted by Kyle Richards Umansky (@kylerichards18) on Dec 13, 2015 at 9:04pm PST

The site is reporting that Mauricio worked for Kathy's husband, Rick Hilton at his real estate firm Hilton & Hyland, but after he was passed over for promotions he quit the company and started his own very successful business.

"Mauricio wanted to be a partner in Hilton & Hyland but Rick would never make him one," an insider explained to Radar. "He just kept putting him off and putting him off. Mauricio finally quit Rick's company and started his own company, The Agency."

"This destroyed the relationship with Rick but there was nothing else for Mauricio to do. He wanted to be a partner and Rick just wasn't doing it for him," the source continued.

However, Umansky isn't crying about leaving the company, as The Wall Street Journal ranked him as the 6^th top-producing real estate agent in the US.

However, the resentment still exisits as it allegedly stems from the Hilton's feeling like Umasnky took the relationships that he built at their company and brought them over to his new business.

"Kathy and Rick felt like Mauricio stole clients from Hilton & Hyland and was taking money from them," the source told Radar. "They basically told Kyle they never wanted anything to do with him again."