Q&A How Can I Safely Break off Contact Between Our Kids and the Affair Partner?

My husband had an affair with the wife of one of our close friends. He has broken things off with her but she does not know that I am aware of the Affair. (I couldn't deal with humiliation). Her husband does not know either. I kept it a secret mainly to protect my kids. Our families are very close and my kids are really attached to her they see her as a cool "aunt" Who is a confidant. It bothers me that my kids are close to her but how do I break off their contact with her without telling them everything. I am afraid if the affair gets out her husband may become violent and also we would be humiliated in our community. Should I or my husband tell her that I am aware of the Affair and ask her to stay away from our kids? Our kids are teenagers and 2 in college so they may still decide to stay in contact with her if they don't know what is going on. What should I do? It tears me up when my kids connect with her. I think she is using them to stay close to my husband.