* 44% of women say losing weight boosted their confidence – but many say it damaged their relationship.
* Over a third report their partner became less affectionate after they slimmed down.
* One woman, 42, says her three‑stone “glow up” left her husband distant – and pushed her towards an affair.
* Study conducted by IllicitEncounters.com, the UK’s largest extramarital dating site.
Weight loss is supposed to transform your life for the better. But, for one woman, shedding three stone didn’t just change her body – it changed her marriage.
A new poll conducted by IllicitEncounters.com, the UK’s largest extramarital dating site, involving 2,000 women has revealed that while slimming down often boosts confidence, it can also create unexpected tension at home – with 52% saying changes in their weight had a negative impact on their relationship.
According to the data, 44% of women said their confidence increased after losing weight. But the emotional ripple effects weren’t always positive.
More than a third (37%) said their partner became less affectionate after their weight loss, while 34% noticed increased jealousy following their “glow up”.
Meanwhile, 29% of women who slimmed down felt their partner seemed “intimidated” by their new confidence.
For one 42-year-old mother-of-two, who asked to remain anonymous, the change was stark. After losing three stone using Mounjaro, she says she has never felt better in herself – but her husband’s reaction left her blindsided.
“I’ve never felt more attractive in my life,” she says. “For years I struggled with my weight. I didn’t feel confident getting dressed up or initiating intimacy. Losing the weight made me feel like me again.”
But instead of reigniting the spark at home, she says the dynamic shifted. “He used to grab me constantly. Now he barely looks,” she explains. “At first I thought I was imagining it. But the more confident I became, the more distant he seemed.”
She says her husband even admitted he preferred her before the weight loss. “He says he ‘misses my curves’, but I think he misses feeling more secure. When I was bigger, I don’t think he ever worried about other men noticing me.”
As her confidence grew, she began receiving more attention – something she says her husband struggled with. “There were little comments. If I dressed up, he’d ask who I was trying to impress. If I went out with friends, he’d act cold afterwards.”
Eventually, she says the emotional distance pushed her elsewhere.“I thought losing weight would improve everything. I didn’t expect it to threaten my marriage,” she admits. “So, when my husband didn’t appreciate the way I’d become, I decided perhaps it was time to find someone who did – and I’ve been having an affair for the past two months as a result.”
Sex and relationship expert at IllicitEncounters.com, Jessica Leoni, says the findings reflect a power shift that can occur when one partner undergoes a visible transformation. “Weight loss can dramatically alter relationship dynamics,” she explains. “If one partner’s confidence increases significantly, it can unsettle the balance that existed before.”
She adds that insecurity can manifest in subtle but damaging ways. “For some partners, especially if the relationship was built around a certain dynamic, a physical ‘glow up’ can trigger feelings of inadequacy or fear of abandonment. Instead of celebrating the change, they may withdraw or become jealous.”
Leoni says it’s not uncommon for increased external attention to amplify tensions. “When one partner starts receiving more validation from outside the relationship, it can highlight cracks that were already there,” she says. “If communication isn’t strong, resentment can build quickly.”
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