SBC -
Yes, I feel sorry for the WTS does to those "loyal" to it and I feel sorry for those who decide to stay "loyal" at great cost to themselves. For your parents they probably have too much invested in the organization - hours of work, friendships, a belief system - to allow them to consider leaving it. The cost to them is too great. And sadly the cost to them of shunning you is less, at least for now. As time passes, I am sure they will reconsider.
It seems that for thinking witnesses that do not practice shunning, the witness/disfellowshipped relationship still is not a full normal relationship. There is something that is held back, maybe the fear of being "caught" or possibly a guilty conscience. So even after your mom or dad start associating with you, it will still be difficult.
I think for those of us that think for ourselves, we expect the same of others. But in reality the organization punishes those who think for themselves. So I try not to judge the individuals for what they do. I have no problem judging the leadership.
You have handled yourself so well through all of this. There probably will be times when it will get to you, but the majority of the time you will enjoy your freedom and celebrate standing for principles.
All the best to you and yours,
zarco