Tarek's Wife vs. His Ex EXPLOSIVE FIGHT ON THE SOCCER FIELD!

Simmering hostility between Heather Rae El Moussa and Christina Hall erupts in a messy face-off in front of the kids

They definitely weren't behaving like model parents. On the sidelines of their kids' soccer games in Newport Beach, Calif., on May 7, Tarek El Moussa's new bride, Heather, approached his ex-wife, Christina Hall, "and got into such a heated exchange, Tarek had to forcibly grab her arm to pull her away," says a source. "And when Tarek told Christina to back off, her husband, Josh, got in his face! Thankfully, one of the soccer coaches stepped in to separate them. It got pretty ugly."

And it's even worse when they're not in public. "You might think co-parenting would trump any animosity, but there is no love lost between Christina and Tarek," the source says of the Flip or Flop stars, who were married from 2009 to 2018 and share kids Taylor, 11, and Brayden, 6. "They can't stand each other, or each other's, new spouse. Tensions are at an all-time high."