Betrayed? Jen Aniston Calls Off Engagement With Justin Theroux & Confronts Other Woman!

Jennifer Aniston has called off her engagement to Justin Theroux after confronting a woman over her relationship with him, a bombshell new report in Star magazine claims.

In the latest shocking development, the source claimed Aniston heard that Theroux may have gotten close to a worker on the set of his HBO show, The Leftovers.

"She was supposedly a pretty blonde, and Jen and Justin had many arguments over her," the source told Star. "He swears nothing happened but she thought different...."

The Friends star even considered changing her schedule to stay close to Justin while he was filming in New York, according to the source, but Theroux was "adamantly against it because he didn't want the stress of having to deal with her while working on an important project." Since they've been separated, the source continued, "He started realizing that he's enjoying his independence, he is in no hurry.

Tensions exploded on April 29, 2015 in New York City, when Aniston had dinner with Jason Bateman and his wife at Greenwich Village's Blue Hill, the report states — and they ran into the other woman. "Jen's always said that she knew this would happen, that she'd run into the girl so she immediately asked this blonde about the nature of her relationship with Justin I mean, it was ballsy. This woman was so taken aback she look like she was about to die," the source told Star.

"Justin was humiliated and embarrassed by Jen's crazy behavior," the insider said. "Especially considering the fact that their relationship is hanging by a thread, he couldn't believe that Jen would go so far as to confront the girl about it. They had a huge fight over the phone."

In her anger, Aniston called off their engagement entirely – a decision Theroux agreed with wholeheartedly, Star reported.

"He's not stupid. He knows having his name attached to hers has been the single best thing to ever happen to his career," the source admitted.

But now, the wedding is off and none of their friends are surprised. "It's been three years and neither of them are getting any younger," the source told Star. "If they were really serious about marriage wouldn't they have done it by now?"