Following her split from Robert Pattinson in 2012, Kristen Stewart reportedly thinks ex-boyfriend is being used by his current girlfriend FKA twigs.

The "Video Girl" singer openly discussed her romance with "The Rover" actor in a recent interview with The Guardian. She admitted how "challenging" and "uncomfortable" it was for her to deal with paparazzi since her lover is internationally famous but it was worth it to be with "the man that I love."

"But then it's, like, is this person in my life worth that? And he is, without question," she said. "Do you know what I mean? In comparison to how happy I am. And how I feel with him. It's 100% worth it. Does that make sense?"

According to Hollywood Life, the "Still Alice" actress believes that FKA is using Pattinson for publicity.

"Kristen was already suspicious of her motives, but when she heard that FKA was straight up talking about Rob to the press, that confirmed it," a source revealed. "She knows Rob wouldn't be okay with that. It's so obvious to Kristen that this girl is just taking advantage of Rob, and it really pisses her off. She's still very protective of Rob."

Meanwhile, Robert Pattinson was spotted at an Art Basel: Miami Beach event, which took place at the National YoungArts Foundation campus on Thursday, to support FKA twigs as a musical performer. "Before the show, Rob and a group of pals hung out with FKA in her dressing room," an eyewitness claimed to E! "When she went on, he and the friends watched from backstage."

"I don't know that you really dance to her music, but Robert was swaying. It was adorable. He looked besotted with her and very proud," the eyewitness said, adding that "Robert gave her a huge hug and kiss" backstage.

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