Back in May, Mackenzie McKee caught her husband cheating on her with her cousin.
Now, it's unclear what exactly transpired between the two parties -- Mackenzie initially said they were having sex, but then backpedaled on that accusation -- but whatever it was, it was bad enough that Mackenzie filed for divorce from the father of her children.
Now, the Teen Mom star is coming forward with new details about the situation.
For starters, it seems the cousin in question is "a lot older" than her and Josh.
And apparently, Mackenzie confronted her when she learned of the infidelity.
Here's everything we know about the situation:
A Woman Scorned
Mackenzie McKee was understandably not happy when she learned her cousin was having an affair with her husband. Now, she's opening up about exactly what happened when she found out.
Trouble In Paradise
It's still unclear if Josh and the unnamed cousin actually slept together or simply carried on "an emotional affair," as Mackenzie has claimed.
What Was He Thinking?
Either way, the timing couldn't have been worse ...
The Toughest Times
Mackenzie lost her beloved mother, Angie Douthit, back in December. Shortly thereafter, she learned of Josh's infidelity.
The Ultimate Betrayal
Mackenzie now says Josh was sneaking out to her cousin even during Angie's final days.
When Mackenzie learned of the affair, she posted a lengthy Facebook status in which she denigrated both Josh and her cousin as cruel, dishonest people.
An Ugly Surprise
McKee says she found out that "one week after my mom died ‘when he started leaving and changing his behavior’ to find he was texting a woman 3-600 times per month and calling her on these nights he was ‘fishing’ until 3am.”
Here We Go Again
“Obviously another affair," she wrote, sadly having been down this road before. "So I go to call the number and it was my close cousin Ashley."
Second Time Around
Yes, Mackenzie had previously caught Josh cheating, and it was her mother who encouraged her to give him another chsnce.
“She was so happy for him and her last words to him were ‘I’m so proud of you, pray for me," Mackenzie wrote of her mother's reaction to the reconciliation.
A Painful Day
Sadly, the reunion was not meant to last, and now, Mackenzie is opening up for the first time about confronting her cousin after learning of the affair.
Getting to the Bottom of the Matter
“When I saw [his phone records], and I typed [the number] in my phone and saw the name, my heart dropped," she said during a recent interview on The Domenick Nati Show.
Insult to Injury
"She is a lot older than us and obviously my cousin. … It just didn’t make sense to me,” McKee added.
Mackenzie is 25, and it's unclear what she means by "a lot older," but clearly she was stunned that Josh would have any interest in her cousin.
It seems Mackenzie decided instantly to make the matter public knowledge by writing about the affair on Facebook.
Letting the World Know
“So instantly, I’m like, ‘This is an affair. I’m writing a status, I’m destroying his name, I’m gonna destroy her name. You know, obviously this is an affair,'" she told Nati.
"So I called her, and she showed up that night and was like, ‘It’s not what it looks like. … I would never do that to you,'” Mackenzie added.
A Painful Surprise
McKee says one of the worst parts was learning that Josh and her cousin had had discussions about how Mackenzie was coping with the death of her mother.
“That was a secret Josh knew about, and his phone was being used to go back and forth. I was furious," McKee said.
"And she did show me the text messages, so I was reading the text messages … and that’s a secret they had behind my back, and, to me, that’s not OK,” she added.
A Simple Request
“Don’t have a secret behind my back. You know what I’m saying? Also, she did know about our problems, so she would ask about us, and he would tell her that we’re not doing good," Mackenzie continued.
So ... It Wasn't Physical?!
From there, Mack revealed that she doesn't believe Josh had sex with her cousin, saying, "And, to me, that’s not OK. Do I think they touched? No. … But it was wrong. It was wrong, and it was not OK, and it hurt me a lot.”
McKee went on to say that it was impossible for her to be with Josh following his multiple infidelities. “Anytime we were together, I was screaming at him, I was bringing up the past. … I was not being a good wife,” she said.
“It was kind of like we were under the same roof but not together. At this point, it wasn’t healthy. We were fighting," she concluded.
Fortunately, Mackenzie now describes Josh as her best friend, and it seems their co-parenting relationship is developing nicely. But don't expect these two to give their marriage another try anytime soon.