Jennifer Aniston is allegedly seething after Brad Pitt set her aside again for his other ex-wife, Angelina Jolie.

According to Closer UK, Pitt agreed to help Aniston with her plans to adopt a baby shortly after they reunited at the SAG Awards. But in recent weeks, Pitt has also decided to reconcile with Jolie for the sake of their children.

As such, Pitt was forced to bail out on Aniston since his priority remains to be his kids with Jolie. And before Shiloh’s 14th birthday, Jolie allegedly granted Pitt permission to celebrate that occasion together as a family.

“Things are finally on an even keel with Brad and Angelina after a messy split. Brad clearly prioritizes the kids and made such an effort for Shiloh’s birthday. But the shift in Brad’s behavior and his rekindled friendship with Angelina has left Jen feeling a bit uneasy. She understands the children come first, but she can’t help wondering how this new dynamic might affect things between them,” the unnamed source said.

The insider also claimed that it took Aniston years to rebuild the trust between her and Pitt. Therefore, it’s been hard for the Friends actress to be set aside again because of Jolie.

“She’s loved them reconnecting and had been hoping he could be a part of her life as she forges ahead with her adoption plans. But with Ange now back in the mix, she fears it might not happen,” the source said.

And since Aniston and Jolie are allegedly competing over Pitt once again, the insider claimed that tensions are once again brewing between the actresses.

“There’s no love lost between Jen and Ange and it’s no secret they’ll never be friends because of the history between them. Jen feels as though she and Brad were really getting somewhere and now their friendship might be put on the back burner as he turns his focus to Ange and the kids,” the source said.

However, one should take the claims made by the tabloid with a grain of salt. As of late, there is no confirmation that Jolie and Pitt celebrated Shiloh’s 14th birthday as a family.

And while Jolie and Pitt’s relationship is amicable, it is unlikely for them to get back together.

Aniston and Pitt are not a couple either. As such, it is unlikely for Aniston to meddle in Jolie and Pitt’s lives regardless if they’re a couple or are merely co-parents of their six kids.