A DailyMail.com reader told columnist Jane Green that an attempt to fulfil a long-held sexual fantasy — watching his wife with another man — backfired and left his marriage strained.

The reader, who wrote under the name "Three's a crowd," said he and his wife had been married for some time and had rarely been adventurous. After deciding he wanted to "spice things up," he proposed the scenario and, after hesitation, his wife agreed and helped plan the encounter. When the moment arrived, he wrote, he was surprised to feel jealousy rather than arousal. He stopped the encounter, removed the other man from the home, and said the couple have been uncomfortable around each other since. The reader asked whether he had ruined the marriage by acting on the fantasy. (The column was published Sept. 10, 2025, on DailyMail.com.)

Jane Green, an international best-selling author who writes the Dear Jane advice column, replied that the outcome was not surprising. "If you play with fire, you get burned," she wrote, adding that the reader's recollection that his wife had been hesitant should have been a warning sign. Green cautioned that while ethical non-monogamy and polyamory are more visible in public conversation, experiments of this kind can leave one partner satisfied and the other miserable. "There is usually one person who has a great time, and one who is utterly miserable," she wrote.

Green advised the couple to work on communication, saying the wife needed to speak up for herself and both partners needed to be honest about their limits and desires. She suggested that if the pair could not resolve the matter through conversation, they should seek a couples therapist. Green also recommended that some fantasies are better left unacted: their appeal, she wrote, often depends on their illicitness.

The reader's account underscores recurring issues that relationship experts identify in mismatched-interest scenarios: differences in desire, unclear consent and unspoken expectations can create distress even when both partners initially agree to an experiment. Enthusiastic, informed consent and explicit boundaries are central to consensual non-monogamy, proponents say; when one partner participates primarily to please the other, the imbalance can lead to resentment.

The case tapped into a larger cultural conversation about the limits of sexual experimentation within long-term relationships. In recent years, more couples have discussed non-monogamous arrangements publicly, and clinicians report increased inquiries about how to navigate such arrangements safely. At the same time, clinicians and commentators frequently stress that experimentation requires careful negotiation and often benefits from professional guidance.

Green's closing counsel to the reader was pragmatic: if the couple can be candid about what they want and what each can accept, they may be able to rebuild trust; if not, a therapist could help mediate. The reader's final question — whether the marriage is ruined — went unanswered definitively in the column, which instead offered a path focused on communication and professional support.

The exchange appeared in Green's Dear Jane column on DailyMail.com and has since drawn attention for its frank depiction of the emotional consequences that can follow when private fantasies are acted out without fully aligned consent and expectations.