Bill, does she know why you are doing what you are doing? Have you told her that you will not be a part of a marriage that has third parties involved? That she needs to cut off contact with OM?
Personally, if not, I would have that convo so that it is clear that your recent behavior is not just a temper tantrum. I'm not saying it is, but you don't want it perceived that way by your W.
IMO, you need to have ONE conversation with her letting her know what your boundaries are.
Denver
M 43 X 38 T 13 W moves out of home 11/2010 Roller coaster from hell 2/2011-5/2012 I request divorce 5/2012 W moves home 6/2012 Good time 7/2012 - 1/2015 I leave 3/2016 process of divorce