Rob Kardashian tweeted an angry message about his ex-gilfriend, Rita Ora, accusing her of cheating Monday morning. He said, "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?!!!" According to various tabloids, Rob and Rita ended their romance last week. His older sister Khloé Kardashian Odom quickly said, "Rob be nice kiddddd, Social media is so much drama. Hehehe thank goodness there was no social media when I was younger. Too much drama in the LBC." He never mentioned Rita's name and eventually deleted the tweet, but it was pretty clear by then who he was talking about.