No sooner has the story about Brad Pitt and Angelina's split hit, than the speculation about why begins.
One popular theory blames the actor's chemistry with French actress Marion Cotillard, with whom he stars in new movie Allied.
He’s in the throes of some insane midlife crisis, and Angie is fed up.
It has also been reported that Angelina was additionally insecure about her husband's friendship with fellow actress Lizzy Caplan, who appears in the same film.
A source told Life & Style magazine: “Her intense jealousy over [Brad Pitt’s] Allied co-stars Marion Cotillard and Lizzy Caplan, and what he sees as her stubborn refusal to take care of herself after so many health scares are among the couple’s marriage troubles."
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Meanwhile, New York Post’s Page Six is reporting that Angelina, 41, has filed for divorce from Brad after learning he was actually CHEATING on her with his co-star, Marion.
Their source claimed: “She hired a private eye because she felt that he was fooling around with her on the set, and it turns out, he was. And that was the final straw.”
The pair had allegedly been cosying up to each other for months during the pair’s filming of the World War II drama in London.
The source continued: “The atmosphere [off-set] was full of hard drugs and Russian hookers, and Angie was told Brad got caught up in it.
“He’s in the throes of some insane midlife crisis, and Angie is fed up.”
Website TMZ is claiming that Angelina believes her husband's drinking and pot-smoking is affecting their kids, plus it reports the 52-year-old has an 'anger problem'.
She is reported to be seeking physical custody of their six kids; she doesn’t want Pitt to have joint physical custody, just joint legal custody.
The couple have been together for 12 years after falling in love on the set of Mr & Mrs Smith, while Brad was still with first wife Jennifer Aniston. They married two years ago.