Despite breakup rumors, Robert Pattinson and FKA Twigs appear to be stronger than ever as reports claim that the couple spent Christmas together. According to E! News, the two spent the holiday season together in London, despite their busy schedules.

A source told the website that the pair most likely spent Christmas with the "Cosmopolis" actor's family and that the actor has been spending a lot of his free time with the singer.

Meanwhile, some media outlets have reported that the two have hit a rough patch in their relationship recently after the "Two Weeks" singer allegedly discovered that Pattinson is still talking to his ex, Kristen Stewart.

A source told OK! Magazine (via In Touch Weekly) that FKA Twigs, whose real name is Tahliah Barnett, became "enraged" after discovering that Stewart and Pattinson had a recent phone conversation.

"She confronted him about it straight away and he insisted it was just a good-will congratulations call about Kristen being in the Oscar race this year," said the source. The insider said that the singer was not happy with this and was not satisfied with the explanation.

The actor and the "Clouds of Sils Maria" star started dating in 2010 while they were filming the second movie in the "Twilight" saga. The two broke up in 2012 after pictures of Stewart and her "Snow White and the Huntsman" director Rupert Sanders looking cozy circulated online.

The source added that Barnett knew how Pattinson was still infatuated with Stewart and the fact that he is still in communication with the 25-year-old "has totally unsettled her."

Aside from the report from OK, there are other rumors claiming that Pattinson and Barnett have called off their engagement due to their hectic work schedules, but a source told E! that the couple is "just fine" and is putting their wedding plans on hold for the meantime.

"There isn't a rush to get married," said the source, adding that there are no specific plans for the moment. "But they still plan on getting married."