OBH can not have your WH fired for sleeping with his WW.
Depending on which state you are in. Your WH's employer can fire him for no reason OR for failure to perform (which requires documentation and lots of opportunities to correct a deficiency)
If your WH's company is willing to fire him simply because a BH asked, than your WH is having issues at work too.
Frankly, I think you should tell him now. The BH will eventually find out. Best you know when instead of having the "threat" hang over your heads for years. Get it done. Make sure he knows. YOU would have wanted him to tell you if he had found out about the A first.
When you tell him, just give him facts and offer proof if he would like it.
[This message edited by Jospehine85 at 4:14 PM, June 29th (Saturday)]