Could you please reference the friendly neighbor approach so I can read up on it. So far I have just brought my baby out and put her and her things in the car, have not told the wife hello or anything. Should I be greeting her and asking her about her day?
Detaching is NOT about being cold and indifferent. You should be warm, polite and friendly but not prying, personal, needy, anxious. You treat her like you would treat a neighbor. Show her what she's missing. No one misses the cold shoulder, ever.