Completely ignored it. She won't hear anything from me until she returns.
I was expecting more shock from it but she is pretty good at keeping control publicly. Also, and I think this is important, she has been with OM so much over the last few weeks and works with him that she has internally rationalized it so not to feel the guilt, especially when D is around. Thoug I believe D has picked up "something wrong with mom"
We'll see how comfortable she is with her rationalization and comfort when more than 5 people know about the A. Let her start thinking about how OTHER people think of her/them. She couldn't give a rat's #ss how I feel (another guilt reducing tactic) but what about relatives and employers and HIS parents?