Former couple Tarek El Moussa and Christina Haack took their final bow on Flip or Flop during its series finale on Thursday (March 18). The hosts of the hit HGTV show bid adieu after 10 seasons, which often showcased a peek inside their personal relationship, including their 2016 divorce. Towards the end of the very last episode, Christina revealed to Tarek why she believed it was a good time to close the book on the program that made them household names.