You know - I wish I had responded in a sterner way. I just repeated "wow" a lot and then asked a lot of questions. I don't think I'll hang with her again and I think I'll follow up at some point by letting her know how I feel. Also wrestling with if I'm morally obligated to tell her H.
If she is a friend you really should say something... please watch this video :
Its REALLY helpful, you get to see MWD in action...
The video is designed for those who KNOW someone having marital problems... and yes, you can sit with your exposure group (family etc) and watch this, it will help educate them about confronting a wayward spouse, motivating them to return to the marriage and rebuild soemthing healthier and happier