It was definitely healing for both of us,” Haack tells PEOPLE of her intense conversation with Tarek, which was featured on their new HGTV show

The Flip Off was intended to be a house-flipping competition series between Haack and her then-husband, Josh Hall, and her ex-husband Tarek and his wife, Heather Rae El Moussa. However, Haack and Hall split early into filming, and the latter exited the show, which viewers saw play out during Wednesday’s premiere.

Tarek El Moussa has taken a playful jab at ex-wife Christina Haack’s (formerly Christina Hall) love life after her split from third husband Josh Hall. “She's secretly engaged,” the real estate investor,