This is a seldom mentioned Red Flag. Narcissists could try to isolate their Target / Victim from friends and family.
When you are isolated, you can be very easily controlled and manipulated.
When you are isolated, there is a greater possibility of the Narcissist’s abuse escalating and becoming physical.
Video is courtesy of the From Surviving To Thriving!! YouTube channel
Attempts to isolate you can be Early Warning Signs. Watch for this Narcissist Red Flag.