Well, without more context, it could be many things. It might be about a cheating spouse, which is a common nightmare for a wife. Maybe it's a story of financial ruin that suddenly befalls a family and the wife has to bear a large part of the burden.
One possible lesson could be the importance of communication in a relationship. If the nightmare involves a lack of communication, like the husband hiding something, it shows that open and honest talk is key.
It could be something like losing a child. But whether it's a true story depends on specific circumstances. Sometimes such nightmares are based on real events, while others are just fictional scenarios.
In another case, a wife discovered that her husband had a severe gambling addiction. He had racked up huge debts in secret. She had to deal with the constant threat of loan sharks and the fear of losing everything they had. This was a nightmare that she never expected when she got married.
I'm not sure specifically which 'a wife's worst nightmare true story' you are referring to. It could be about many things like her partner having an affair, a serious illness in the family that she has to bear alone, or financial ruin.
It could be about many things. Maybe it's about a mother losing her child in a dangerous situation like a kidnapping, or a child getting seriously ill suddenly. Without more specific information, it's hard to say exactly.