Navigating the aftermath of divorce: Insights from Ask Amy

A reader seeks advice on how to maintain a friendly relationship with her brother-in-law and his new girlfriend, who she recently discovered had been in a relationship for at least five years while he was still married. The reader is struggling with the knowledge of their infidelity and lack of shame, but columnist Amy Dickinson suggests that it is not her place to judge and advises her to keep her harsher judgment in check.