The fallout of Jennifer Aniston and Brad Pitt’s marriage was blamed on Angelina Jolie. After all, Pitt started dating the “Maleficent” star shortly after his divorce from Aniston was finalized.

But according to Mirror, Aniston and Pitt’s marriage wouldn’t have lasted even if Jolie wasn’t in the picture. The publication claimed that Pitt and Aniston suffered from a so-called “professional jealousy,” which meant that they were both jealous of each other’s successful careers.

When they were together, Pitt and Aniston were already considered A-listers in Hollywood. Aniston was starring in “Friends,” and Pitt also appeared in a slew of movies and other projects.

But when an issue arose regarding pay equality on the set of “Friends,” Aniston and her co-star, Courtney Cox, became the highest-paid actresses at that time. They both received $1 million per episode, which was the same salary that the male cast members received.

According to multiple sources, Pitt was not supportive of Aniston’s desire to sign up for the final season of “Friends” so he stopped supporting her. Pitt also stopped visiting Aniston on the set of the sitcom.

Pitt also skipped the end of season party for “Friends.” At that time, Aniston seemed to cover up for her husband by saying that Pitt had a very busy schedule at that time.

Years after the couple divorced, Aniston talked about the end of her marriage to Pitt, and she indirectly mentioned Jolie. This may be one of the reasons why the public thought that she and Pitt divorced because of the mom of six.

While speaking with Vanity Fair, Aniston reacted to the photos of Pitt and Jolie published by W magazine.

“I can’t say it was one of the highlights of my year. Who would deal with that and say, ‘Isn’t that sweet! That looks like fun!’ But [expletive] happens… You joke and say, ‘What doesn’t kill you makes you stronger’… He’s made some choices that have been tremendously insensitive,” she said.

Jennifer Aniston, Brad Pitt
Jennifer Aniston and Brad Pitt are pictured attending the 56th Annual Primetime Emmy Awards on Sept. 19, 2004, in Los Angeles. Getty Images/Kevin Winter