One way could be to expose her actions to her family and friends. Let them know what she has done in a calm and collected manner. This can make her face the consequences of her actions within her social circle.
One story is about a man who found out his wife was cheating. Instead of getting violent, he quietly gathered evidence of her affair. Then he used this evidence to expose her to her family and friends at a big gathering. Everyone was shocked and she was left with a lot of explaining to do. It was his way of getting revenge in a non - physical but very effective way.
A wife cheating on her husband in a revenge novel usually involved the following plot:
The protagonist was cheated on by his wife. He felt angry, disappointed and desperate, and decided to take revenge.
Through various means, including investigation, stalking, threats, etc., the protagonist finally succeeded in exposing the truth of his wife's adultery, making her feel guilty and ashamed.
After revenge, the protagonist would usually seek inner balance and repair, try to communicate with his wife and try to forgive her mistakes.
In some novels, the protagonist may choose to divorce or take other actions to end the marriage, but after revenge, he will usually reconsider his life choices and start a new life.
This kind of novel usually involved topics such as love, marriage, family, morality, etc., which might bring readers deep thoughts and enlightenment.
A man can start by allowing himself to feel all the emotions. Don't suppress the anger, sadness, or disappointment. Cry if you need to, shout in an empty room. It's all part of the process of dealing with the initial shock.
One common plot could be that the husband discovers the wife's cheating. He might then start to gather evidence secretly. For example, he could take pictures or record conversations. Then he uses this evidence to expose her infidelity to their family and friends, causing her public embarrassment.
One possible ending is that the wife realizes the error of her ways after the revenge. She tries to make amends with her husband, but he may or may not forgive her. For example, she might start to be more affectionate and cut off all contact with the other man. However, the husband could still be very hurt and decide to end the relationship.
One way some might think about revenge is through public shaming, but this is unethical and can have legal consequences. A more proper approach could be to gather evidence in a legal and respectful way if there are matters like alimony or child custody to be sorted out in case of a divorce.
The character could start by sincerely apologizing. Acknowledge the pain they've caused and show real remorse. For example, they could write a heartfelt letter.
In a story, the husband who has been wronged by his cheating wife might decide to take revenge by writing an anonymous and very steamy novel about a woman who cheats on her husband and the karmic revenge she faces. The erotic elements are in the detailed descriptions of relationships and encounters in the novel, which becomes a huge bestseller and embarrasses his wife as everyone speculates it's about her.
Seek professional help, like couples therapy. A trained therapist can help both of you communicate better and work through the issues. This gives the relationship a chance to heal and grow if both parties are willing.