My W said that she was too weak and felt too powerless to work on the M and she wanted time and space to heal.
I would translate that as affair-speak for something like: I'm too weak and too powerless to want to work on the M and I want time and space to go have an affair. Her actions seem to back that up. My personal opinion is to go dark, b/c when they are in an active affair I think it often doesn't seem to matter too much what you do. Work on your changes and 180s for you. Karen