Bad Blood! Angelina Jolie 'seethes' as Brad Pitt is 'frustrated' over nasty split... but he refuses to 'play dirty' even though he has 'stuff' on her

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Angelina Jolie and Brad Pitt are entering family counseling to deal with their split after 12 years together.

But that doesn't mean the 41-year-old Oscar winner and the 52-year-old Fury actor will be getting back together.

According to UsWeekly, there is a lot of 'bad blood' between them. But the Oklahoma native refuses to drag her through the mud.

Not happy exes: Angelina Jolie and Brad Pitt have bad blood between them, according to UsWeekly; here they are seen in November 2015

Angry? The magazine added that Jolie is 'seething.' It was claimed something he did made her 'very pissed off'

The magazine added that Jolie is 'seething' as she plots her exit from her two year marriage to Pitt. It was added that something he did made her 'very pissed off.'

The By The Sea director has been reportedly holed up in a Malibu rental with all six children: Maddox, 15, Pax, 12, Zahara, 11, Shiloh, 10, and eight-year-old twins Vivienne and Knox.

Meanwhile, the publication added that Pitt is 'frustrated.'

Happier days: The couple appear to be fine in Australia in 2014 at the premiere of her film Unbroken 

'Brad just wants to work through everything and get to a place where there can be some certainty about what's going on,' a source told UsWeekly. 'The kids are the only thing he's hanging on to.'

That means Pitt has no plans to reconcile with the UN Goodwill Ambassador and Special Envoy. 

As far as making her look bad, the insider said that will not happen.

He won't stab her in the back: 'There is so much stuff of Angelina but Brad just doesn't want to go there. He told his team he doesn't want to play dirty,' the source claimed; here they are seen during their last red carpet appearance together in November

'There is so much stuff on Angelina but Brad just doesn't want to go there. He told his team he doesn't want to play dirty,' the source claimed.

There was no hint as to what that 'stuff' could be. 

As far as his 'stuff,' a source said Brad had 'nothing to hide on the drug front.' 

A source also told the magazine the Department Of Children And Family Services has made suggestions to the couple about what to change.

They have a lot to sort: The next step in the split is for the two to agree on a long-term custody arrangement. 'The hope is that this period of time will lead them to being able to resolve things without the involvement of the courts'; here they are pictured in 2010

They were called in September by an anonymous tipster after an alleged fight that involved Pitt, Jolie and Maddox aboard a private jet that was heading from Nice, France to Los Angeles, California, according to TMZ. A pit stop for gasoline was made in Missouri.

The next step in the split is for the two to agree on a long-term custody arrangement. They have a temporary once in place until October 20.

'The hope is that this period of time will lead them to being able to resolve things without the involvement of the courts,' a source claimed.

Trying to cope:The By The Sea director has been reportedly holed up in a Malibu rental with all six children: Maddox, 15, Pax, 12, Zahara, 11, Shiloh, 10, and eight-year-old twins Vivienne and Knox

Visits with the kids: Brad (pictured August 2014) is being allowed visitation with his children -  and for the first meeting in the presence of a therapist