If friends decide to shun you, were they truly friends or just acquaintenances at the KH? Personally, I would just tell them to put their Judicial Hearing where the sun don't shine.
When the elders set me up, I did just that. I sent a three page letter using quotes from the Bible, Watchtower Literature and especially the Elders Manual showing why I did not honor their committee. I never heard anything back until I mailed my DA letter and forgot to sign it.
Still I am getting shunned, especially by my step kids. But, they are learning the hard way about biting the hand that feeds. They wish to live without TV, computer, snacks, phone and other things teens enjoy, it doesn't bother me. In fact, it costs me less. I just save the goodies for me and enjoy them in front of them. Too bad they decided to shun me and not speak to me. But, their choice.
Oh, and the KH isn't supplying them with any of it, either.
If God's Spirit is filling a Kingdom Hall, how is it that Satan can manuever the ones within that Kingdom Hall at the same time?