There are so many variables ... exposure can be a crap shoot. I agree with the "blood is thicker than water." My in-laws thankfully didn't take that route. Told me they thought H had been a real idiot. Of course it helps that I've always had a good relationship with them.
But if you expose and the family does not react as you expect, and you get a reaction like "these things just happen" or, you're made out to be the bad guy for exposing, what then? Doesn't that help to validate the A to the affair partners?
