I think the amount of time you give things to see if they are working is subjective. What is working best for you about NC? That you have gotten your bearings a little bit is good. Do you feel stong enough to make a small change right now? If so, what would it be?
You can always go back to NC.
You also need to define what "working" is for you. It probably won't be his suddenly changing his mind. Does "working" mean easier conversations or possibly just less tension when you do see him?
