Married at First Sight's Jess Potter says she once caught her boyfriend sleeping with her stepmum.
The Dental hygienist, 31, failed to find love in the latest series of the E4 show and has now revealed a past experience left her needing therapy.
Jess said she'd been with her ex, then 24, for four years and they’d just bought a house together.
However, after leaving him drinking him with her stepmum one night while the rest of family slept upstairs, she says she discovered his infidelity.
"I saw two glasses, an empty bottle of champagne, my boyfriend and stepmum's phones, and two piles of clothes.
"I instantly knew what had happened, I could even see handprints on the table," she said.
But worse was to come, according to Jess.
After finding her boyfriend sleeping on the sofa, she said: "He then pulled up her lacy pants instead of his own! I was in complete shock. I couldn't believe what I was seeing," reports The Sun.
Jess said her stepmum, who had been in her life for 25 years, "admitted to it all" while her father said the couple were going to get a divorce straight away.
After the incident, the TV star said she sought therapy, claiming it's taken her five years to "be confident again".
The Sun reports it asked Jess' step-mum for comment, but she said: "I don't want to talk about it”.
Jess didn't have the best of times on Married at First sight.
The TV star left the show, saying she has been "true to myself".
Viewers were saddened when Jess and Pjay gave up on their marriage after failing to find a spark, with the dental hygienist admitting she had no "sexual attraction" towards the stripper.
Taking to Instagram, she said: "I came into this experiment, I feel really emotional, I came into this experiment looking for a husband and unfortunately I didn't find it."
She went on to wish the other couples well in the show, and said: "For every single girl, women out there, always trust your gut, your instincts, and never let anyone tell you what's right for you. The only person that knows what is best for you in life is yourself."
Happily, Jess is now in a new relationship and says she's grateful she’s been able to put her faith in someone else after everything she’s been through.
She's been posting a flurry of pics of herself on Instagram with gas engineer TJ O'Reilly, telling fans the couple met on Tinder.
Fans were delighted for the TV star, with one gushing: "Pleased you've finally found happiness."