Amber Portwood and Matt Baier were involved in a major fight on last night's new episode of Marriage Boot Camp: Reality Stars Family Edition.

Nearly one year after the couple called it quits, fans are finally seeing the final moments of their relationship play out on the WEtv series. On Friday night's episode, the Teen Mom OG star accused her ex-fiancé of abusing her during their years-long romance.

“Why do you think I’m so angry? Because you put your hands on me!” Portwood screamed, according to a report from Hollywood Life on March 16.

“Oh, bulls***!” he replied.

As the former couple battled it out in the Los Angeles home where the series was filmed, Dr. V, one of the doctors of the series, spoke to the cameras about their troubled relationship stating that they definitely had an abusive relationship. Dr. V also said that physical violence is "non-negotiable."

“You are one the most violent people I’ve ever met,” Baier told Portwood as the scene continued.

However, according to Portwood, she only became violent with him because he hit her. Still, Baier maintained that he never hit Portwood and accused her of being a liar. He then pointed out that she is the one who has spent time behind bars for battery.

In response to the comments made by her now ex-fiancé, Portwood volunteered to take a lie detector test and advised Baier to get help.

In the months since Portwood and Baier filmed Marriage Boot Camp: Reality Stars Family Edition, a lot has happened. Portwood has moved on with her new man, Andrew Glennon. Also, she and Glennon are living together and expecting their first child in just a couple of months.

While a number of fans and followers of the Teen Mom OG franchise accused Portwood of moving on from Baier too quickly, she has maintained that she is completely happy with her new man. Portwood praised him for refraining from cheating on her and hurting her.

Portwood also has an older child, 9-year-old Leah, from her previous relationship with Gary Shirley.

To see more of Amber Portwood, Matt Baier, and their co-stars, including The Real Housewives star Brandi Glanville and rapper Jim Jones, don't miss new episodes of Marriage Boot Camp: Reality Stars Family Edition on Friday nights at 9 p.m. on WEtv.

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Amber Portwood, Teen mom og, Marriage Boot Camp Reality Stars, Matt baier, Andrew glennon