Steve, in most circumstances I agree with you but there are sitches where keeping quiet is not helpful.
Firstly in abuse sitches then the full extent of the abuse including an A has to be discussed. Otherwise the target lacks the support they need.
When a wayward is living with an OP and is flagrant about an A then it's obvious anyway.
I never believe in lies and denial of the truth, ever. The LBS denies their own reality. Much of the time it's no one's business but the couple involved so on a need to know basis, most don't but they will speculate anyway.
And in some cases merely saying that you reserve the right to tell the truth and you will never lie is a shocker to the wayward. Whether you do or not is a personal decision.
As for telling the A partners spouse, opinions are very mixed on it. My own stance is don't but that's not everyone'S view.
I have NO sympathy for cheaters. None, zero, nilch and they should be dropped from a great height on their entitled noggins. Disclosing to the world their nasty cheater ways is the right of the numpty cheated on.
And anyone who is the spouse of a cheater should get tested for STD and make it very clear to the wayward that they have done this because the cheater can't be trusted.
Waywards are cheaters that's the unvarnished truth. By cheating they put the numpties' health at risk. That is nasty.
V
Freedom is just another word for nothing left to loose. V 64, WAW