Jason Derulo is still talking about his split with Jordin Sparks — and this time, he's admitting he called it quits with the songstress over the phone, after almost three years together. And, no, in case you were wondering, Derulo said it wasn't their sex life that was to blame for the split.

After denying again that he was unfaithful (Derulo told Us Weekly in a statement last week he didn't cheat and reiterated it again in an interview with Ryan Seacrest on Monday, Sept. 29), the singer told Power 105.1's DJ Envy that their relationship simply ran it's course. "Every relationship has their ups and downs and you know, when you start having more downs than ups, you gotta take a look at your relationship and be like, 'Is this something that I'm supposed to be doing?'" he explained during the interview on Wednesday, Oct. 1.

While the "Ridin' Solo" singer's been vocal about the split, he got even more candid with the DJ. "It wasn't a problem in that area at all," Derulo said in response to a joke about his and Spark's sex life. "Yeah [our sex life was fine]," he added.

The now-single 25-year-old, who penned the song "Marry Me" for Sparks last year, went on to admit that he called it quits with Sparks "over the phone" because he "wasn't in town."

Sparks, for her part, has been taking the split in stride, telling Hoda Kotb and Kathie Lee Gifford in an interview, "I'm good, actually...I read this quote [yesterday], and it said, 'When something unexpected happens in your life, or you think something bad happens, just say 'Plot twist!' and move on.'"

When asked by Wendy Williams if Derulo cheated on her, however, Sparks said, "I actually don't want to comment on that," and added that when it comes to the BMW he gifted her with, "he can have it."