Kristen Stewart reportedly thinks that ex-boyfriend Robert Pattinson's highly publicized romance with FKA twigs won't last.

"[Kristen] is convinced this is just a fling," a source close to the "Still Alice" actress revealed to Hollywood Life.

Stewart apparently believes the "Video Girl" singer's feelings for the "The Rover" actor will eventually fade away.

"[FKA twigs] will grow tired of Rob within half-a-year," the source said. "Kristen just can't see the relationship lasting."

Although Stewart does not seem bothered by Pattinson's new relationship with FKA twigs, it has recently been reported she is considering moving to downtown Los Angeles to avoid her ex and his current girlfriend.

"Kristen is eager to move into her downtown loft in LA before the New Year," a source said earlier this month. "She does not want a weird run-in with Rob and Tahliah. And she doesn't need to see them all over each other."

The source added that Stewart is counting on her friends to keep her away from the British couple.

"Kristen is well aware that Rob's new house is near her hood," the source explained. She already told her friends that she doesn't want to hear if they see them together at the places she used to go with Rob. She just wants to focus on her new digs downtown and paint."

In addition, Pattinson is reportedly planning to take FKA twigs home to introduce to his family on Christmas.

"Tahliah has her own family in England, but they don't want to be apart for the holidays," a source told Star. "And Rob wants his family to get to know her because he thinks she will be around for a very long time."

It seems like the "2 Weeks" singer may have to brace herself before meeting them, as Pattinson warned her about his "overprotective sisters," Lizzy and Victoria.

"They've never liked any of his girlfriends," the source said. "Tahliah knows the battle ahead of her."

Related