Yeah NC is not working here. He just uses it as a defense mechanism when it isn't going his way... then one word from her and he is right back there and all that.
Reck
Yeah she won't call you. It is to her advantage to not call you. Out of sight, out of mind.
She will stall talking to you because she DOESN'T HAVE to talk to you.
So all you can do is when the time is right you take advantage of the opportunity to tell her.