Rita Ora and Calvin Harris

Rita Ora and Calvin Harris

Rita Ora has moved "onwards and upwards" since splitting from Rob Kardashian.

The 'How We Do' hitmaker, who recently admitted her current boyfriend Calvin Harris is her first love, insists she has changed and evolved since ending her relationship with the 'Keeping Up with the Kardashians' star in late 2012.

Asked about Rob by Australian radio hosts Kyle and Jackie O on Friday (04.04.14), the 23-year-old British singer initially tried to avoid talking about him and said: "I've got no idea what you're talking about."

But she then continued: "Onwards and upwards, guys. Honestly, there's a place and time for everything and people change and evolve. I think time will tell really and you've just got to keep the train moving forward."

Rita and Rob were inseparable during the summer of 2012 but he accused her of cheating on him "with nearly 20 dudes" after they split that December.

The 27-year-old reality TV star is reportedly suffering from depression after gaining 60 pounds following their ugly split.

Earlier this week he hinted that he still isn't over the blonde beauty by posting a cryptic message on Twitter just hours after she hit the headlines for saying that she had never "experienced" love before she started dating Scottish DJ Calvin, 30, last May.

He tweeted: "No one will ever understand how much it hurts."