Robert Pattinson and FKA Twigs exchange promise rings Credit: FAMEFLYNET

Getting serious! Robert Pattinson and FKA twigs have exchanged promise rings, multiple sources tell Us Weekly. What’s more, the romantic move was all the Twilight actor’s doing.

“It was Rob’s idea to get the rings,” a source tells Us. “They’re ‘we’re in a committed relationship’ rings.” 

And his musician love, 27, couldn’t be happier to sport the symbol of their love. “FKA loves Rob because he is the nicest guy she’s ever been with,” an insider explains of the English singer, whose real name is Tahliah Debrett Barnett. “Rob sends her flowers, handwritten notes, and mp3 files of songs that he’s written for her — she says he’s the sweetest guy on the planet.”

“It goes both ways,” another source tells Us. “He says this is the best relationship he has ever been in and he can see it being for life. He admires and respects her.” 

Us Weekly exclusively confirmed the couple, who met through mutual friends, were dating this past September. At the time, a source told Us that "Tahliah thinks he is unbelievably handsome."

The relationship marks the first serious romance for Pattinson, who split from his Twilight costar Kristen Stewart in May 2013.