Mama June Says Her Daughters Discovered Sugar Bear Was Cheating on Her

How her relationship with Sugar Bear unraveled.

Mama June Shannon is revealing how her relationship to her estranged husband, Sugar Bear, unraveled.

The ex-couple is appearing on WE tv’s Marriage Boot: Camp Reality Stars to try and "work things out," and Mama June is claiming it was Alana "Honey Boo Boo" Thompson that told her of her significant other's alleged affair.

"Me and Sugar's been in a relationship for a little over 11 years, and it's in serious trouble, because Sugar's been cheating, and I'm hoping to get some answers," says June. "My Daughter Alana found proof and that's what really devastated me!"

WATCH: Mama June and Sugar Bear Shed Tears in Preview for 'Marriage Boot Camp'

While appearing on the show, Sugar Bear has to submit to a polygraph test regarding whether he's been faithful with June.

"That's all I can tell people the truth will be revealed," says June.

In November, Mama June promised that Marriage Boot Camp would be “unscripted like we have always ever been,” saying previously on Facebook, “That’s only kind of TV we believe in and we want you all to see the true side of all of us."

WATCH: What Really Happened While Making ‘Honey Boo Boo’

Marriage Boot: Camp Reality Stars
, which also features Sean Lowe and Catherine Giudici from The Bachelor, premieres on Dec. 4 at 9 p.m. ET/PT.

See more about the show in the video below.