Stop telling those stories. If they make your friend upset, it's not worth it.
You need to understand your friend better. Maybe they have some past traumas related to the elements in your stories. So, find out what might be triggering them and avoid those aspects in your stories.
Your storytelling style might be a bit overbearing or self - centered. Try to make your stories more inclusive, like asking for their opinions or experiences related to the story. Also, pay attention to their body language and reactions while you're telling the story. If they seem uncomfortable, change the topic or tone.
You could also try to increase the time you spend with your wife and strengthen your relationship. Plan special dates or activities that you used to enjoy together. This might help to re - establish the connection between you two and make her focus more on your relationship rather than on the friendship with your best friend. At the same time, you can keep a friendly but more distant relationship with your best friend for a while to see how things develop.
If the stories are positive and harmless, you can just let it be. But if it makes you uncomfortable, you might gently remind your friend that your wife is your partner and while they can share memories, the concept of 'owning' stories might be a bit odd. You could say something like 'I'm glad you have memories with my wife, but she's my family and we should respect boundaries.'
Tell her directly that these stories are inappropriate and you won't share them.
Tell your cousin straight up that you don't want to share or have anything to do with such stories. Be firm and don't leave any room for misunderstanding.
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.
First, you need to stay calm. Reacting impulsively will only make things worse. You should have an honest conversation with your wife about why this happened. As for your friend, it might be best to cut ties at least for a while. It's a very difficult situation and there's no easy fix.
First, try to have an open conversation with her about it. Let her know how you feel and also ask her more about why these stories have such an effect on her.
First, you can try to be open - minded. Have a calm conversation with her about it, expressing that you've noticed this and you're curious. Avoid judgment.
This is a very tough situation. First, you need to take some time to calm down. Then, you might consider having an honest conversation with your wife to understand her reasons, although it will be extremely difficult. As for your friend, it's probably best to cut ties. You may also seek professional counseling to help you through this emotional turmoil.