"Wildest Dreams" singer Taylor Swift has been reportedly swinging back to her ex, Jake Gyllenhall, even though she is still dating DJ Calvin Harris.

Swift's alleged cheating surfaced in the Nov. 23 issue of Star magazine, according to HollywoodLife. The report revealed that the actor started to communicate when model Cara Delevingne came across Gyllenhaal and he asked the 25-year-old's phone number. The magazine's exclusive source said that the 34-year-old had to get Swift's number because he wanted to ask for an apology for what had happened before when they broke up.

After Gyllenhaal's successful attempt of reaching to Tay Tay, the former flame was reportedly catching up more often, which happens to be under Harris's nose.

However, an exclusive source of HollywoodLife revealed that the cheating allegations were not at all true.

"That is complete nonsense of her being in contact with Jake," a tipster told Hollywood Life exclusively. "She is devoted to Calvin and her career which are both going strong."

Furthermore, the source said that Swift isn't really "seeking anything from past boyfriends at all" and that she has cut her communication with Gyllenhaal.

This wasn't the first time that Swift and Harris's relationship has been bugged down by rumors. Just last month, the gorgeous pair was reported to have split because some reports say that Harris had a happy ending, not in Swift's arms, but with a woman at a Thai massage.

In another HollywoodLife report, it was said that Harris, himself, has busted the rumor and made everything clear through his Twitter account.

"It's not going to be a 'happy ending' for everyone I sue for defamation of character for all these bull---- stories bye bye," the DJ warned in his Twitter account on Oct. 12.

One problem for the couple, though, was their own busy schedules according to the same report. During then, Swift's has been really losing time for Harris because of her "1989" tours in the U.S. However, it was said that despite their crazy schedules, no breakups were seen on the horizon.

To make up for the lost moments, the pair was said to be spending the winter holidays together after Swift is done with her "1989" World Tour.

"People want them to break up," a source exclusively told the publication. "But Calvin and Taylor are looking forward to the holidays and all that comes with that."