I just don't want her spreading the news to her parents (they don't know the full story about OM, she has told them that they are just friends and poss heading towards a relationship. Not that they have been having a sexual one for 10 months).
Her parents still love and respect me more than the other two son in laws. I just don't want them to think that I was the one to stray, re-inforcing my W's decision for a D, and then blaming me.
But, in the end, who cares what she tells anyone, as she has probably made things up behind my back anyway. She knows the truth.