Privacy
How much of yourself you reveal to the people already in your life. Controls what you share, how deep you go, and what stays yours.
The No-Contact Family Dynamics
Privacy relates to how this person needed to control what information about their mother they allowed into their life through their sister. They realized their sister was becoming an unwanted portal for their mother's influence. The person needed to adjust their privacy settings with their sister to block mother-related content while maintaining their sibling relationship.