Maybe people have different experience, but I think it becomes real hard for her friends and family to be genuinely supportive of her when she admits and OM. I've seen elsewhere that often these relationships don't withstand the cold light of day. For me, (in a pre-last-resort moment), I pointed out that I assumed all of her co-workers knew about the nascent A because they're so obviously flirtatious. Who knows if it helped, but it knocked her into silence for a bit. It's the usual what's obvious to the outside observer is not obvious to those involved situation. When she said that she told her family and friends, I also asked if they knew about the OM. Being good and decent people, they're not likely to support her directly on the topic of OM ...
One interesting thing I've found that there is often an implicit assumption that people have that the H has done something amiss (affair jumps to mind first, but also violence, alcohol, drugs, MLC for the H) when W leaves. I find myself going through the whole spiel of "wife moved out, no there was no big blow-up fight, I didn't have an affair, never any violence or drinking or drugs ..."
