Robert Pattinson and fiancée FKA Twigs have put off their wedding plans, giving rise to speculation that their relationship may be coming to an end. While the two have not called off their engagement, they barely speak to each other, reports said, citing sources.

The couple has “barely spoken” in recent weeks as the two stars are caught up with their work and fail to get time for each other.

"They’ve definitely drifted and have barely spoken while he’s in Belfast and she’s been in the States,” a source close to the “Twilight” star told People magazine. The wedding is now “off the agenda,” the source reportedly said, adding that they still “haven’t called off the engagement.”

However, amid reports that Pattinson and FKA Twigs have pushed their wedding date due to personal issues, Hollywood Life reported that the singer is busy planning her wedding.

“Things are going very well and they are both very happy with each other,” a source told Hollywood Life. “Don’t take this news as a bad thing -- they just want to get it right because they only want to do it once. FKA wants it to be perfect and she keeps going back and forth on ideas. She definitely wants it to be amazing, so she keeps thinking of things to add to the festivities.

“Rob is in no rush,” the source added. “He knows that it is going to happen and he’s happy with that. He is fine with the delay because he’s happy with their relationship. They spend time apart, but they make sure to see each other often.”

Last month, reports surfaced that the "Two Weeks" singer “can’t decide what [kind of] wedding she’d like to have" because of which she decided to postpone her nuptials.

The news of Pattinson and Twigs’ engagement made the rounds in April, following which the duo haven’t been open about details surrounding their love affair -- only showing up together at a few public events. In a recent interview with The Sunday Times, Twigs even slammed the idea she is getting married.