Heather Rae Young Says Fiancé Tarek El Moussa's On-Set Argument With Ex-Wife Christina Haack Has 'Blown Over': 'Everyone's Moving On'

What drama? Heather Rae Young insisted there's no bad blood between fiancé Tarek El Moussa and his ex-wife, Christina Haack, after he reportedly lost his cool on his Flip or Flop costar.

"People have to remember they’re coworkers and they are exes," the Selling Sunset star said of the nasty on-set incident, during which El Moussa called Haack a "washed-up loser."

While talking to Us Weekly on Thursday, September 9, Young pointed out: “There’s going to be little frustrations here and there," given the reality stars' unusual situation.

The soon-to-be newlywed alleged there's a lot the public doesn't know about even though she, El Moussa and Haack share many aspects of their lives on social media and TV. “There’s a lot going on in all of our worlds, and there’s only so much that the world sees," she continued.

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Despite the heated moment on the HGTV set — which resulted in production putting a pause on filming the co-parents together for the rest of the day — Young insisted: "It's blown over, and everyone’s moving on."

As OK! previously reported, El Moussa, 40, went off on his ex-wife in July while taping their reality show. Apart from bragging about his life, claiming he is "winning," El Moussa boasted that he "made" Haack and said he enjoys watching the blonde babe fail.

One week after El Moussa went on his verbal tirade, an insider revealed the reality star regretted his reaction during their dispute. "They're exes who share a history and children and a workplace," the insider explained, "but outside of coparenting, they're not friends."

The former flames — who share 10-year-old daughter Taylor and 5-year-old son Brayden — wed in 2009 and split in 2018. The Christina on the Coast star went on to marry Ant Anstead, and the duo welcomed 2-year-old son Hudson in December 2018. Haack and Anstead split shortly later and finalized their divorce earlier this year.

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The reality star is now dating Joshua Hall, who she recently gushed was her "ride or die."

Meanwhile, El Moussa is gearing up to marry real estate agent Young after the lovebirds first met in 2019. The 33-year-old and her soon-to-be hubby aren't shy when it comes to flaunting their love on social media.

Young has been offering her 1.8 million Instagram followers glimpses of their wedding day plans leading up to their nuptials, most recently sharing a photo of the place they'll be having their first dance as husband and wife. "I can't wait to marry you," Young lovingly captioned the post while tagging her fiancé.