If I had it to do over, I might just consider the long bouts of the silent treatment as a blessing in disguise! However, I know well from experience how painful it can be. Here are some things to avoid when narcissistic mother is giving you the silent treatment:
Rather than address their inappropriate or abusive behavior, toxic people pull away and say nothing. This is done to try and invalidate the survivor's feelings. - Southlake Christian Counseling From Shannon Thomas at http://southlakecounseling.org/
When someone walks away after you stand up for yourself, and you don't hear from them for days or weeks. That is not normal. In fact, it's abuse. It's emotional neglect, they obviously don't generally care for you... Please understand that's not real love at all… you're not a door mat to be walked on, your a friend, partner or spouse & deserve better treatment.
I'm Not Speaking To You! - The Extreme Silent Treatment
Silent Treatment A preferred weapon of Narcissists; a passive-aggressive form of emotional abuse in which displeasure, disapproval, and contempt are exhibited through nonverbal gestures, such as glaring, while maintaining verbal silence.