Angelina Jolie and Brad Pitt’s split may have been more bitter than anyone realized.

The actress is alleged to have told their 15-year-old son Pax that his father ‘never wanted to adopt him,’ according to an Us Weekly source.

The 43-year-old also allegedly told the boy during the fallout that Brad ‘was angry’ she had proceeded with the adoption.

‘It’s harmed his and Brad’s relationship, though Brad denied having said that specifically,’ the insider claimed.

The source claimed that Brad was instead concerned about adopting a three-year-old who didn’t speak English less than a year after they welcomed Shiloh, in what was a ‘very difficult time for the couple’.

Angelina allegedly told him at the time: ‘Pax needs me more than Shiloh.’

‘They almost ended the relationship, but Brad stayed,’ the source added.

Late last month, lawyers revealed the star couple had finally come to a custody agreement regarding their six children Maddox, 17, Pax, 15, Zahara, 13, Shiloh, 12, and ten-year-old twins Vivienne and Knox.

Angelina reportedly wanted full custody, but settled to share physical and legal custody to avoid dragging the kids into a trial.

While the matter has been settled for now, the split has taken its toll on Brad’s relationship with each of his children, according to Us Weekly’s insider.

His relationship with eldest Maddox was already strained, but now the actor ‘has accepted that he’ll likely never be able to repair their relationship.’

‘He’s always been headstrong and protective of his mother,’ the source said, adding Maddox was his mom’s ‘closest confidant’ during the fallout.

Shiloh has ‘seemed the most eager and willing [of the four eldest] to work on things with Brad,’ the insider claimed.

Zahara now has an ‘improved’ relationship with her dad, they added.

Twins Knox and Vivienne meanwhile ‘have been sheltered from a lot of the issues’, the source said.

According to Us Weekly, both actor’s parenting skills came under fire following assessments from social workers.

The source said that while Brad made huge strides ‘addressing his anger and psychological issues’, one social worker ‘felt he had trouble accepting personal responsibility and often blames others for his actions.’

Angelina meanwhile was allegedly chastised ‘for indulging the kids all the time and creating an unstable living environment.’

One case worker reportedly believed she was was currying favor with kids, and that it hurt Brad’s relationship with his kids; ‘but the worker didn’t think Angie was trying to actively sabotage the relationship.’

The insider also claimed that Brad and Angelina will never see eye to eye.

‘Angelina hasn’t offered any concessions about her actions that have contributed to the situation,’ the insider added.

‘Angelina has a lot of emotional baggage from her own unstable childhood,’ the source concluded, describing her as ‘extremely complex.’

Pitt and Jolie confirmed they were in a relationship in 2006, when she became pregnant with Shiloh.

They married in August 2014 but split in September 2016.