I would love nothing more than to confront OM at work. I think it would really get to him if I did. I did some research on HR websites (pathetic I know!) and he could possibly claim harassment if I did. My W knows what I think of her R with him and that is what is most important.
If it escalates (S or D), I have his gmail address from his communications with my W and I could always send him a email that starts with "I obtained your personal email address via your inappropriate communications with my W". I would then love for him to show that one to HR!
