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.

Christina Haack and Tarek El Moussa's children appeared on "Flip or Flop" throughout their childhoods, returning to HGTV screens on "The Flip Off."

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'

El Moussa and Haack married in 2009 before finding fame on HGTV with their hit series Flip or Flop. The couple share two children, a daughter born in 2010 and a son born in 2015. They announced their separation in December 2016, before finalizing their divorce in 2018.

Christina Haack is still close with ex-husband Tarek El Moussa’s mother even after their divorce. Haack opened up about her relationship with her former mother-in-law on the Wednesday, Feb. 5 episode of The Flip Off as she called on a secret weapon in the flipping battle against Tarek and his wife,

Real estate investor and HGTV star Tarek El Moussa shares his top renovation mistakes, how to avoid them and what to know before hiring a contractor.

Christina Haack invited ex-husband Tarek El Moussa's mother to be a guest judge on their HGTV series 'The Flip Off'

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,