There’s conscious uncoupling and then there’s conscious collaborating. Exes and TV personalities Tarek El Moussa and Christina Haack have reunited for a new reality competition show, “The Flip Off,” on HGTV.

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.

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