Kim Kardashian Disses Rita Ora Following Singer's Split From Brother Rob?

Kim Kardashian recently spoke out regarding her brother Rob's love life following reports that Rita Ora has ended their relationship.

Rob, 25, sparked engagement rumors in May when he professed his love for Ora, 21, via social networking site Twitter, at one point even referring to the pop star as "my wife." On Monday, Kim posted a cryptic tweet which some critics believe was an attempt to make Ora jealous.

"When out to dinner w my brother @RobKardashian every gorgeous persian/armenian girl stares at Rob! I think that's what he needs in his life!" Kim tweeted. Rob's sister Kourtney, 32, appeared to agree with Kardashian as she retweeted the post soon after.

Ora has been spotted on several dates with Rob since late 2011 and the pair appeared to be serious, particularly after Rob's May tweets.

"You did it. I love you and you're my wife. That's MY baby! @RitaOra. I hate h---. But I LOVE MY WOMAN! I'm so proud of You!" Rob previously tweeted in response to one of Ora's songs going platinum in the U.K.

In a recent interview, however, Ora denied having a romantic relationship with Rob, insisting that she "doesn't have time for a relationship."

"I've never been in love. Is that a good thing or a bad thing? I think it's sad. I've held a boy's hand before. I've looked into a boy's eyes and [jokingly] said, 'Hey you notice me please!' Honestly, I don't have time for a relationship," Ora told radio 1 U.K.

"I'm single at the moment. I'm a girl and I would love to meet a boy, but I have no time and it would be unfair. I'd be like a ghost, an invisible girlfriend in a relationship," she added.

While some fans have expressed disappointment in the rumored split, others believe that Ora was not a good fit for Rob, who was arrested in March after the pair got into a public dispute.

Video surveillance of the pair's public spat shows Rob in a heated argument with Ora while on the streets of Miami. At one point the reality TV star is seen being pushed by the British singer who is heard screaming, "Now you listen to me!" according to the video posted on