Christina Haack (formerly Christina Hall) shared a shocking truth about her past relationship with ex-husband Tarek El Moussa, and revealed that his mother, Dominique El Moussa, told the HGTV star that she should reconsider marrying her son.

The HGTV personality candidly spoke about her relationship woes with estranged husband Josh on Wednesday's premiere of her new show, "The Flip Off."

Christina Haack and Tarek El Moussa split close to 10 years ago—but the mother of three still knows how to get under her ex-husband's skin. She displayed that skill in the latest episode of their HGTV show " The Flip Off " when she teased a "new partner" who she knew would spark some upset.

Exes and TV personalities Tarek El Moussa and Christina Haack are reuniting for a new reality competition show on HGTV

And HGTV’s The Flip Off, starring fan favorite Christina Haack along with Tarek El Moussa and his wife Heather Rae El Moussa, certainly delivers that. Especially on its latest episode. The former Flip or Flop stars and couple battle to locate,

Courtesy of Christina Haack/Instagram; Courtesy of Heather Rae El Moussa/Instagram Christina Haack turns to the best when it comes to borrowing date-night outfits. Haack, 41, took to Instagram on Thursday,

The designer says fans have been calling her close relationship with her ex and his new wife, with whom she currently co-stars on HGTV's 'The Flip Off' — 'weird'