LOS ANGELES: Rita Ora and Calvin Harris have called time on their nine-month relationship, according to reports. The How We Do singer sparked speculation that the romance was over when she stopped following the DJ on Instagram earlier this week and posted the message: “Have you ever wondered which hurts the most: Saying something & not wishing you had not, or saying nothing and wishing you had?”  Now a source has told The Sun that it’s over between the Scottish DJ and Rita, who is in Canada to begin shooting the Fifty Shades Of Grey movie.–BF