How would you counsel your FDW if she tells you that her husband is seeing another woman?

I think what you should do in this situation is just to listen to what she has to tell, it's basically on her mind 24/7 and she needs to let it out to someone, anyone. And if you think you have some good advice on how she can handle the whole situation, let her know. Offer her if there's anything you could help her with at this point of time. She would definitely appreciate it.