Taylor Swift and Calvin Harris found themselves amidst yet another round of break-up rumours. After it was reported that the couple is finally spending some quality time together during the holiday season, a new report has claimed that the singer and DJ are now doubtful whether their relationship will last.

Though rumours revolving around Tay-Cal's wedding, break-up and relationship are running wild, neither the singer nor the DJ have confirmed anything. Only last week, it was speculated that the couple may have got engaged secretly and are in no hurry to make anything official. After staying apart for months due to Taylor's "1989" album tour, Tayvin was said to have finally reunited on the "Wildest Dreams" singer's 26th birthday, which is when the "How Deep Is Your Love" hitmaker spent time with Tay's family as well.

"No breakup is going to happen. No engagement is imminent, but they have told each other that it ends with them and they will get married," a source told.

A couple of months ago, there were reports that the wedding rumours were just freaking out both the singer and the DJ. "Things are still good but Taylor and Calvin are not going as fast as everyone thinks. Those wedding rumours freaked them both out. That is definitely not where they are at. It's a nice fantasy but the last thing Taylor wants is for Calvin to think she's desperate for him to put a ring on it. That's just awkward," a source said.

But now, according to the Belfast Telegraph, the "Bad Blood" singer and "Summer" hitmaker are both in a state of doubt regarding the stability of their relationship. And the couple is apparently questioning themselves whether they will be able to pull it through next year.

"Calvin and Taylor barely see each other face-to-face at the moment, and they're starting to question if they can make it to the next year," an insider told.

The report further said that Taylor Swift and Calvin Harris will take some time off for each other during this holiday season and assess their romance. "They are both looking forward to taking time out from their busy schedules to assess everything," the source said.

"Taylor, in particular, wants to make sure they're both on the same page. They're expected to spend some time together before celebrating with their respective families. They want to make it work but, at the same time, neither of them wants to really feel like they're forcing it. It's going to be a really testing time," the source added.

Well, it looks like Taylor Swift and Calvin Harris fans will have to wait until their favourite couple comes out in the open about their current relationship status.