Exes Tarek El Moussa and Christina Haack put on a united front - with their new partners - at their son Brayden's 10th birthday party. "Bray Bray gaming B-Day party," Tarek's wife, Heather Rae El Moussa, wrote via her Instagram Stories on Saturday, August 23. Heather, 37, sported a beige-colored athleisure set with coordinating sunglasses as she posed beside Tarek, 44, in a white T-shirt and a black baseball cap. The pair stood beside Haack, 42, and her boyfriend, Christopher LaRocca. Another friend named Kristin posed between the two couples.