Yeah, I know about the pain. Worst I have been through in my life. But, if there is a silver lining, it has shown me I am a much stronger person than I ever would have believed before. Hopefully, my W sees some of that too - but that is irrelevant to me.
The reason I ask about whether an A would be a deal breaker is b/c that would influence whether or not you tried to find out more. I can't answer that b/c I do not think it is part of my sitch (ANYTHING'S possible - just don't see evid - AND I LOOKED). Don't know if it would have been a dealbreaker for me, but I wanted to know, mostly from a "if this is going on, how do I deal with this" view.
The look v. don't look appears to be one of the big debates here. But, putting that aside for a moment, until you have proof, I think you just keep doing what you are doing and see where it goes. Keep your guard up. But it sounds like you are doing all those things now anyway.