Robert Pattinson and his music fiance FKA Twigs may have called off their engagement!

The insane pressures of conflicting, busy schedules, and long-distance dating reportedly ruined things, forever, according to new report.

According to Life & Style magazine, Robert and FKA have "been on the outs” since he began filming 'The Lost City of Z', and allegedly decided, on October 28, to officially break up.

"FKA called Rob on his first day of filming to tell him that she couldn’t visit because of her busy schedule,” a source tells Life & Style. “[He] let her know he wasn’t happy about it,” and FKA allegedly “lost her temper,” and “yelled at him to stop complaining and hung up on him."

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Following their alleged argument on that first day of filming (October 1), Robert and FKA apparently "went into a long period of not speaking to each other."

The couple, who have been together since August 2014, then reportedly decided to break up because of the nasty fight and following deep freeze.

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Robert’s family, according to the source, is reportedly not as heartbroken as he is. "They don’t think she’s right for Rob," they added.