The REAL Reason The Kardashians Dumped Loyal Makeup Artist — Jealousy!

The Kardashians don’t like kompetition!

As Us Weekly reported, Kim and her famous sisters have cut ties with their longtime confidante and makeup artist of more than a decade, Joyce Bonelli.

Now, RadarOnline.com can exclusively reveal the reality stars became livid when they learned Bonelli had secretly begun developing her own cosmetics line that would undoubtedly compete with KKW Beauty and Kylie Cosmetics.

“Customers are always looking for the hottest new makeup line, it's out with the old, in with the new in this business,” an industry insider told RadarOnline.com. “Joyce has a huge following, two million on Instagram, so I predict she will have a lot of success."

The insider slammed the family for ditching their longtime friend for pursuing her own dream.

"How soon they forget! I mean, Kim was once the one cleaning out Paris Hilton's closet!” the insider said. “You'd think they'd be more supportive of the people who helped them along the way."

RadarOnline.com can also report Bonelli’s revenge Instagram robe, which reads “F*** With Me I Dare You,” has sold out at Kitson.

Kitson owner and retail strategist Fraser Ross told RadarOnline.com, "She was in the store recently and bought this robe. If this is any indication of how her makeup line will sell out, it's no wonder the Kardashians are on edge!"

The Kardashians have a history of dumping their employees. They cut ties with stylist Monica Rose in a bitter falling out last May.

Six months later, Kim ended her business relationship with her beloved assistant, Stephanie Shepherd, after a source told RadarOnline.com Shepherd “was tired of being talked to like she was beneath Kim.”

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