Reality Tv star Rob Kardashian appears to have accused British singer Rita Ora of cheating on him during their romance in an angry Twitter.com rant hours after news of their break-up hit headlines.

The R.I.P. hitmaker was first linked to Kim Kardashian's younger brother earlier this year (12), but it emerged on Monday (03Dec12) that their long-distance relationship had crumbled, reportedly as a result of their busy schedules.

Rob has since shed a little light on the real reason behind the split in a series of furious Twitter posts, in which he hits out at a cheating ex - although he stopped short of naming Ora outright.

The scorned Tv personality tweeted, "She cheated on me with nearly 20 dudes while we were together, I wonder how many she will sleep with now that we apart? But I mean 20?!!! How can a woman who is so busy trying to start her own career have time to be with so many dudes all while in a relationship?!

"I'm actually disgusted a woman could give up her body to more than 20 dudes in less than a year's time while trying to start a career."

The tweets have since been deleted, but not before his sister Khloe weighed in on the controversy, writing, "Cheaters never prosper @RobKardashian ill (I'll) be home today... Try and smile little brother." She also encouraged Rob to "be nice".