Angelina Jolie has never been BFFs with Brad Pitt‘s mom, Jane, who reportedly still stays in touch with Brad’s ex-wife Jennifer Aniston, but their relationship just took its coldest turn yet! Angelina is said to be “steaming mad” that Jane wrote a letter to The Springfield News-Ledger opposing gay marriage, and she wants her fiancé to step in. “She has told Brad he must educate his mother,” a source tells Star magazine, “but Brad is too much of a mama’s boy.”

But wait, it gets worse.

“If Brad won’t do it, Angelina will have to take matters into her own hands and talk to Jane about how, as the mother of such a prominent celebrity, she shouldn’t be writing letters that clash with her son’s political opinions.”

The source adds that an Angelina-Jane confrontation would be devastating — and could potentially end the couple’s engagement:

“It’ll eventually end up in a huge blowout, with Brad stuck in the middle.”

More Brad & Angelina News:

1. Brad Pitt’s Brother Doug Stars In Hilarious New Viral Video
2. How Jennifer Aniston Is Getting Back Into Brad Pitt’s Circle Of Friends
3. Find Out What Amazing Birthday Gift Brad Pitt Gave Angelina Jolie

From the look of it, Angelina Jolie and Brad Pitt‘s kids are very happy — no problems here. But Brad’s straight-laced and strict mom Jane disagrees! She and Angie allegedly got into an argument at the twins Knox and Vivienne‘s third birthday party over 5-year-old Shiloh‘s bratty behavior. “Jane thinks Shiloh’s wild and rebellious,” an insider tells In Touch. And she blames Angie!

“Jane is irked at how Angie raises Shiloh,” the source continues. “The twins are always being carried; Shiloh’s hand is hardly held. She thinks Shiloh is forgotten.” Forgotten? Shiloh’s simply independent, what’s wrong with that?

Not to mention Brad and Angelina have not one, but SIX young children to worry about! Their kids have to be able to share the attention sometimes.

“Jane said she would deal differently with a little girl who just wants attention, and Bill [Brad's dad] said he plans to have a long talk with Shiloh,” reveals the source. And obviously, this doesn’t make things easier between Brangelina. “The fact that Jane doesn’t like how Angelina raises Shiloh is a huge point of tension between her and Brad,” adds the insider.

So, what is Brad’s take on this battle? He’s torn.

“He knows his parents’ suggestions come from a good place,” a Pitt family insider shares, “but Angelina feels like Jane is overstepping a boundary by suggesting she needs parenting advice.” And we agree! Leave Angie alone — she’s obviously doing a fine job!

–Leigh Blickley

More on HollyBaby:

1. Hooray Angie! You & Brad’s Mom Have Bonded!
2. Angelina Jolie Refuses To Let Brad Pitt’s Parents Move In — Is She Being Unfair?
3. Shiloh Jolie-Pitt’s Loves Her Blanket — She’s Just Like Our Kids!

INFphoto.com

But — we gotta ask — what’s up with the car on Shi’s jacket? Is she a truck-lovin’ toddler? Tell us, Pax!

Two of the world’s luckiest people, Pax and Shiloh Jolie-Pitt, got to enjoy some scrumptious gelato with grandparents Jane and William Pitt while strolling in Venice, Italy on April 18.

Pax must have gotten a little too excited, eating too much ice cream too quickly and in return, getting a massive brain freeze! Must have been 20 seconds of pure misery — look at his poor little face! I hope his grandparents took them out for some nice caffe latte (decaf, of course) after!

Little sis Shiloh seemed to be enjoying her dessert! Don’t get confused though, she is the one to the right of Pax. You might not have known due to the short hair-cut and brown car sweater. Vroom!

You don’t have to be in pretty pink tutus with a bow in your hair to prove you are a little girl but seriously?

What do you think of Shiloh’s tomboy gear?

Click here for more pics of Shiloh dressed like a boy