I'm really sorry about your sister.
But,I was just sitting here thinking to myself,yeah I do that sometimes,lol,even when I was an active Witness,I felt shunned. Witnesses are so busy in the cycle of meetings,service,conventions,assemblies,plus all their other responsibilities,they don't have much time left for anything or anybody else.
It's an out of sight,out of mind mentality.
But,I know,she is your sister,and she should check up on you at least every once in awhile.
But,if it makes you feel any better,my family hardly talks to me,and they still think I'm in good standing ,so what does that tell you.