Who did Rita Ora cheat on Rob Kardashian with? Mon-24-Dec-12 15:32 Share this By Jay-Jay Feeney Supposedly the reason Rob Kardashian dumped Rita Ora was because she was cheating on him with actor Jonah Hill! You May Also Like Rob Kardashian: “I’m not in rehab!” Beyonce yelled at which pop star? Rita Ora is back with a brand new single AND video! Become a fan of The Edge on Facebook and on Twitter .