Women often make themselves vulnerable letting their closest friends know when their marriage isn’t going well. Best time for them to come after your man.
Years ago I received the sage words, “Your kin folks are the first to screw you out of your money and your best friend is the first one to screw your wife “ that is actually a gender free statement.
So common that early in my marriage my wife said to me, “I don’t want you screwing around on me but if you just have to, don’t do it with any of my friends. I don’t want them talking about me.” She knew what friends do.
No surprise in your story.