Hi fullof! Welcome! Sorry for the pain you're suffering at JW hands at the moment. I used to, when shunning started for us a few years ago, feel very much the same as you and just as distressed. In the last few weeks I have thrown of the grieving over this shunning practice and come to my senses.
What the hell are we all doing giving in to this crap that come from the lips of the Unfaithful and Indiscreet Slaves!
I, you and we all know its all rubbish, the WTBTS beliefs, that is. Why do we just roll over and die for them?
I have made contract with cousins and relatives, all JWs, and elders, and elders wives and have been kind, thoughtful and nice to them. They have been either too astonished or to well mannered to push me away in any way!
Perhaps, you should tell your sister that you will be continuing to treat her as a Christian should despite what she is willing to do to you and you will not stop treating her with love and consideration. You will forgive her now, in advance any evil she is willing to do to you in the name of the WTBTS and continue treating her and her family with all the love and kindness they deserve..
GET THIS RIGHT - These shunning rules are neither Christian or REAL rules. They are man made control freakery and YOU do not have to give in to either the pain, suffering or humiliation they are intended to cause.
YOU MUST rise above this NOW.
I don't know if my cousins are going to get a grip of themselves and try to ignore me when I next make contact, but I shall NOT be giving in to WTBTS crap!
I URGE you to be strong and do the same. Treat your relatives with love and kindness and hopefully in time they will see sense.
LOVE and faith in love can move mountains and may move your sisiter's heart.
Give it a go!
Good luck and best wishes
Gill