I was doing a data transfer from her old iPhone to her new iPhone when she got a bunch of messages (displayed on the screen) and thus I found out that my wife's family has been talking very negatively about me (group chat) with each other. Obviously I am really upset but she doesn't know that I saw those messages. I am acting like I didn't see them.
Islamically speaking, am I allowed to have her stop talking to these people who obviously don't wish well of me? If I continue to let them speak to her, I am concerned that she will think it's okay and maybe they may become so relaxed about speaking ill of me in front of my kids.