I think you should read other posts and offer comments when you want. Sometimes you get help by helping.
In response to your questions... 1. YES, YES, YES 2. Don't bring up OM at all. 3. Going dark means that you don't initiate any contact with her. No emails, texts or calls. It also means that you try not to respond to 100% of her attempts at contact. You want her to miss you.
GL
Jen
Jen *The more anger towards the past you carry in your heart, the less capable you are of loving in the present*