In some mystery novels, it could be a false setup to mislead the main character. Maybe someone wanted you to think she was in danger to cover up their real intentions, like stealing something from your house while you were distracted by her situation.
It could be part of a prank by her friends. Maybe they wanted to play a joke on her or you. Another possibility is that she was involved in some sort of self - defense training and was practicing being in a restrained situation.
One reason could be a prank. For example, her friends might be playing a harmless joke on her. Another reason could be part of a performance, like in a theater play or a movie scene. It could also be in the context of a mystery or adventure game where she is 'trapped' as part of the plot.
One reason might be a creative form of foreplay. In a consensual and loving relationship, couples may explore different ways to add excitement. Another could be as a form of punishment in a very light - hearted and joking way. For example, if he forgot an important date.
One reason could be for a game. For example, a scavenger hunt - like game where she has to use her other senses to find things. Another reason might be for a performance, like a play or a magic show as I mentioned before. Or it could be part of a surprise party where her friends and family want to build up the suspense before revealing the celebration.
One reason could be to create a sense of vulnerability. When a woman is tied up in a movie, it makes her seem more helpless and in need of rescue, which can drive the plot forward. For example, in action movies, the villain might tie up the female lead to lure the hero into a trap.
One reason could be that the reader has stumbled upon a secret. For example, if the story is set in a world of spies, the reader might have accidentally overheard some top - secret information and the villains want to keep him quiet.
She might be referring to stories where characters are in situations of being tied up in a non - literal sense, like in adventure or mystery stories where someone is trapped or restricted. For example, in a detective story, a victim could be tied up in a basement waiting to be rescued.
Perhaps it's a themed party. The 'wife tied up' is part of a pirate - themed party where she's captured by the 'bad pirates' and the guests have to rescue her through various challenges and games. It could be a really fun and interactive way to engage everyone at the party.
She could be back because she wants to give the relationship another shot. Maybe she's grown as a person during the time apart and believes she can be a better partner. For instance, if she had issues with commitment before but has now worked through them. Or perhaps she realized that the problems that led to the breakup were not as big as she initially thought and can be resolved with better communication.
Maybe it's about being brave and adventurous. Girls might volunteer first to get tied up in a story - like in a fictional adventure where they are captured by pirates - just to show their courage and start the exciting part of the story.
This is a very concerning situation. One possible reason could be some kind of mental breakdown or extreme family conflict. Maybe the sons have some serious issues that they are not able to handle in a proper way and they resorted to this inappropriate and illegal behavior out of desperation or lack of proper communication skills.