Rita Ora - Rita Ora Explains Rob Kardashian Split

Kim Kardashian's younger brother took to Twitter.com and ranted about a disloyal ex-girlfriend, just hours after news of his break-up emerged on Monday (03Dec12).

However, Kardashian stopped short of naming Ora outright as he 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? 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?!"

The R.I.P. hitmaker has now shared her side of the story with Britain's Glamour magazine, blaming the pair's busy work schedules for keeping them apart.

She says, "I'm not going out with Rob. We were close for a while, but it didn't work because I was never there. I was like a ghost. I used to get so frustrated with myself and then wonder why I was angry, so I decided it was best to keep it friendly - especially at the moment, when there's so much going on."

Ora also admitted she has never found true love, adding, "In 22 years, there's been nothing. I have had young fascinations but never love. I think it's my only weakness. I'm scared of letting my guard down, and if I feel in love with someone now, he'd have to try 10 times harder to break it down."