Christina El Moussa has reportedly ended things with her booyfriend, Doug Spedding.

Although the Flip or Flop personality has stayed mum on the alleged news, a new report claims Spedding cheated on El Moussa before enterring rehab to treat his reported substance abuse issues.

On October 18, In Touch Weekly magazine revealed that El Moussa had allegedly discovered that her boyfriend was secretly meeting with one of his ex-girlfriends, Tracy Diaz, behind her back -- and also that he was allegedly back on drugs. As the magazine explained, Spedding was arrested in 2011 for possession of a controlled substance.

“Christina encouraged him to go back to rehab. Christina is the type of person who sees the best side of others, and that’s how she was with Doug. Caring about someone does not save someone and Christina knows that. She just wanted to help him,” said the insider.

“Christina went to put an alarm on Doug’s cell phone to wake him up and she saw text messages [between Doug and Tracy],” a second source said. 

Spedding is said to be a wealthy retired car dealership owner with a troubled past. In addition to his drug arrest, Spedding was also arrested for domestic violence against his twins' mom, Nicole Doucette.

“Christina didn’t just turn her back on him. She respects and supports Doug’s decision to take the steps to make changes in his life," the source explained. "Ultimately she cares about him and his daughters and has no doubt this is what is best for them.”

El Moussa is currently starring alongside her former husband, Tarek El Moussa, on HGTV's Flip or Flop.

To see more of Christina El Moussa and Doug Spedding, check out the video below.