Acharei Mot - Kedoshim 5783
Question: Why are some עריות mentioned in relation to their husband? Approach: It would seem that the main driver between the prohibitions of many of the עריות is the blood relation of the adulterer. As such, where the main prohibition is based on the wife of the relative, the relative needs to be mentioned, so as to understand the logic as to why this non-relation woman is forbidden.