Jason Derulo and Jordin Sparks break-up over phone call

(Credit: REUTERS/DANNY MOLOSHOK)Singer Jason Derulo (C) performs at the 2013 Wango Tango concert at the Home Depot Center in Carson, California, May 11, 2013.

Jordin Sparks and Jason Derulo might have seemed like they were having a whirlwind of a romance, but when Derulo agreed to do a radio guesting at New York's Power 105.1 FM with DJ Envy, the singer gave a glimpse into how rocky the relationship was.

When asked about the recent split, Derulo revealed that he broke up with the American Idol winner through a phone call since he was not in town.

After the hosts "grilled" Derulo for initiating the end of a relationship without Sparks face-to-face, he defended himself and revealed that there had been more "downs" than "ups" in the relationship.

"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?" the singer said during his radio appearance, as reported by CBS news.

Derulo denied all cheating allegations, however, and that the relationship was not going well. Continuing that he felt pressure on the marriage side, Derulo said that the break-up had been a "long time coming."

"You're going to always see pictures of me with other women," Derulo explained.

"Women are around me all the time. But you can't just put that women in my bed, just because she put her hand on my shoulder...Women grab a hold to me all the time. You can literally snap a picture of me at any given moment and it could look crazy," Derulo added during the Power 105.1 FM interview.

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