The thing is, she also shares two kids with Tarek El Moussa, and reports indicate that he’s concerned about what she’s been up to in her personal life and what impact that has maybe had on the kids. Thus the tension on set. It likely doesn’t help that Tarek El Moussa is known to have a little bit of an explosive personality; the reality star’s own split from his Flip or Flop co-star came after Christina Haack thought he might be suicidal after an altercation led him to take a gun and go on a solo hike. The police were called, Tarek told them he’d taken the gun for protection, but the couple split up shortly thereafter. However, their HGTV series continued on. Multiple seasons have filmed since the divorce and subsequent romances came into the picture and, in general, the former couple has still made for good TV.