Your main goal is to present a stark contrast to the OW. You are the prize. This means making your home warm, cozy, and inviting. When your W moves out to the 'hood, she will reflect on those times and the wheels will start to churn inside her noggin. Of course, she may not tell you this lest she, gasps!, give you any glimmer of hope.
Sit very still and watch the squirrel scurry about here and there.
You would want to make your home environment Mitford cozy. Haven't you read any of the Mitford series by Jan Karon? Wonderful reading!