'KUWTK' Star Rob Kardashian's Charm Not Working With Cara Delevingne? Michelle Rodriguez's Ex Spotted in NYC With Rumored Girlfriend

"KUWTK" star Rob Kardashian has reportedly flooded Cara Delevingne's phone inbox with messages asking her out on a date. But if the rumors are true, his charms was no match for St. Vincent, the alleged new girlfriend of the British supermodel and Michelle Rodriguez's ex.

According to the report from Star magazine, per Us Weekly, Rob Kardashian allegedly sent Cara Delevingne a lot of text messages asking her out.

"He's been bombarding her with text messages, and it's creeping her out," the source said. "She's not attracted to him at all and is pretty insulted that he would think he had a chance."

Cara Delevingne is friends with "KUWTK" star Rob Kardashian's half-sister, Kendall Jenner, who is slowly carving a name for herself in the modeling world.

"He's still in a downward spiral," the magazine said of Rob Kardashian's weight gain. "He's so lonely and desperately wants to find the right woman, but his confidence is at rock bottom. He really wanted Cara to like him."

But there's a reason why Michelle Rodriguez's ex Cara Delevingne snubbed "KUWTK" star Rob Kardashian's advances since the British supermodel has reportedly been seeing St. Vincent for quite some time now, rumors alleged.

"Stunning model Cara Delevingne been secretly dating striking US singer St Vincent for four months, it has been revealed," Mirror said. "The gorgeous pair met back in December and appeared to make their relationship public by kissing and holding hands at the Brit Awards."

"Model of the moment Cara is thought to be smitten with St Vincent, real name Annie Clark, and has been following her around the globe on her tour."

The British tabloid added that Michelle Rodriguez's Cara Delevingne has been a constant fixture in the concerts of St. Vincent in Tulsa and Tokyo.

"It is believed the pair have holidayed together in Bali, with model Cara, 22, even meeting Annie's family," it said.

Perhaps Cara Delevingne's snub of Rob Kardashian's advances was a result of "it's not you, it's me?"