I'm not sure specifically as this seems like an inappropriate and unethical concept. In a healthy and ethical society, relationships are based on respect, monogamy, and consent.
One possible consequence could be the breakdown of the marriage. If a wife is shared without the husband's true consent in such a situation, it would likely lead to a great deal of emotional turmoil for the husband. He may feel betrayed, angry, and lose trust not only in his wife but also in their relationship.
If the relationship between the husband and wife is salvageable, they could set clear boundaries moving forward. They may need to distance themselves from the 'friends' involved to start rebuilding their trust and respect for each other. It would also be important for the wife to show her commitment to the marriage through her actions and words.
It could mean that a wife has told a story to her friends. Maybe it was a personal experience, like a funny incident during a vacation or a touching family moment that she wanted to share with her friends for various reasons, such as to bond, seek advice or just for entertainment.
Perhaps it implies that the wife has a story she wants to share with her friends. It could be a story about her family, a new hobby she's taken up, or even a problem she's facing and seeking advice on from her friends. For example, if she started a new business, she might share the story of how she got started, the challenges she's overcome so far, and her plans for the future.
Here's one more. The wife might have had an encounter with a neighbor. For instance, she met a new neighbor who had an interesting job or a unique hobby. She could share this story with her friends, telling them all about this new person in the neighborhood, what they talked about, and her first impressions of them.
It's difficult to say how common they are. In today's society, with so many distractions and opportunities for people to interact outside of their marriages, there may be more instances than in the past. But still, a large number of marriages are based on loyalty and commitment, so while it does occur, it might not be the norm. There are also cultural factors at play. In some cultures, any behavior that could lead to a husband feeling cuckolded is highly frowned upon and less likely to happen openly.
First, you should talk to your friends calmly. Let them know that your wife's story is private and you don't appreciate them sharing it without permission. Then, communicate with your wife about how she feels. If the sharing has caused any harm, you may need to take steps to stop any further spread of the story.
I'm not sure specifically as this seems like a rather unethical or inappropriate story concept. We should focus on positive and ethical stories in general.