One sign could be that your friend is overly interested in your wife's personal life. For instance, always asking about her daily routine, her hobbies, etc. Another sign is if he tries to be alone with her often, like suggesting they go for a walk or have a drink just the two of them. Also, if he gives her excessive compliments that seem more than just friendly, like constantly telling her she looks beautiful in a flirty way.
This is clearly unethical. In a healthy society, we respect the boundaries of relationships. The wife's friend should be considered in a platonic and respectful way. If a couple engages in such seductive behavior, it shows a lack of integrity and respect for others, and can also damage their own relationship in the long run.
Handling this situation requires a lot of emotional intelligence. You might be feeling angry, betrayed, and hurt all at once. But don't let your emotions get the best of you. Try to gather evidence if possible, like text messages or inappropriate behavior you've witnessed. Then, sit down with your wife and show her the evidence. Have a calm and rational discussion about your marriage and how this outside influence is a threat to it. Also, when confronting your friend, be firm but not violent or overly aggressive. You want to make it clear that his actions are wrong without stooping to his level.
This is a really tough situation. You might consider getting some distance from this so - called friend. As for your wife, try to strengthen your relationship with her. Plan some special dates or activities together to re - connect. If the situation doesn't improve, seeking professional relationship counseling could be an option.
First, you should have an open and honest conversation with your wife. Try to understand her motives. Maybe there are some problems in your relationship that she is expressing in this inappropriate way. As for your friend, you need to clearly state your boundaries and let him know that this behavior is unacceptable.
The friend could firmly and clearly state their discomfort and boundaries. For example, they can say something like 'I'm not comfortable with this behavior, and I consider you my friends. Please stop.' Another option is to simply cut off contact with the couple if they continue to be inappropriate.
There are indeed some such stories in literature. In some novels, the plot might involve a wife being dissatisfied with her marriage and then starting to have improper interactions with a neighbor. This can lead to a series of events that not only affect the individuals involved but also the whole community around them, like causing gossip and ruining reputations.
A wife might plan a surprise treasure hunt for her husband around their house. Each clue leads to a memory or something special between them. At the end, she is waiting with a beautiful gift and a big hug, which is a very sweet way of seducing through surprise and sentiment.