Robert Pattinson

Robert Pattinson

Robert Pattinson is "falling in love" with FKA twigs.

The 'Twilight' star - who has been dating the singer since the summer - is reportedly so "serious" about his new girlfriend that he isn't concerned that his movie, 'Idol's Eye', being delayed.

A source revealed: "[Rob] wasn't even that disappointed that his film got pushed because it means he can spend more time following her around on tour, he's her number one fan.

"They're very serious, Rob's only seeing her, he's not dating anyone else or even looking at other girls. He's really happy, they're falling in love, he's totally wrapped up in her."

A witness also revealed that the couple seemed to be all loved up at one of the 26-year-old's recent shows.

The 'Two Weeks' hitmaker played a sold-out show at Terminal 5 in Brooklyn, New York last night (08.11.14) whilst Robert watched from the side of the stage.

A witness at the event told HollywoodLife.com: "He was in a great mood.

"Laughing, drinking, stuck with his friends all night. [He] couldn't take his eyes off her."

Meanwhile, sources recently revealed that the 28-year-old actor is reportedly keen to move back to London to be with his girlfriend.

An insider said: "She is behind Rob's decision to move back. He's serious about her.

"They are really happy and he seems keen to make a fresh start, away from the mutual circles he shared with his ex-girlfriend Kristen [Stewart] in LA.

"They've both got busy schedules but they're planning to move to London together in the foreseeable future."