Hello Pamela You are in the conundrum of love for a friend and doing what you feel to be the right thing. It is one of the hardest positions to be in. Here are the options from what I can see.
Say and do nothing. Your friend is NOT your responsibility, but you will be there to help pick up the pieces when this things blows up. Send a note to the cheating husband letting him know an unknown person is aware of what he is up to and will inform his wife unless he cuts the tryst off immediately and completely.
You are protected from your friend's wreath, and the story should now move on. Send a note to the wife, anonymously, and not mention the ID of your friend. See if she'll call him on the carpet.
If not, then ID your friend and provide some kind of evidence. Abandon your friend, letting her know you can't stand by and see her do this to herself. Those are the choices as far as I can tell.
Up to you what you do. Dr. D.
She sounds bipolar... urge her to make an appointment with a shrink (a psychiatrist) to help her with her behavior, and hopefully she will be diagnosed and given meds to calm her erratic behavior and destructive path. Do NOT take on responsibility for her shabby choices, especially if she refuses to seek medical help for her mood swings and sexual acting out. Her destructive behavior is typical of a bipolar person.
Keep your respectful distance. Next she will be blaming YOU.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.