Jesus talked about thinning out of true believers and false followers on many occassions. It still hurts to be a part of it. I can say that when churches have split (my inlaws church in CT) it actually strengthened the church. This happened by weeding out those that were not truly committed to Christ. Follow HIM and you can never go wrong. With every new chapter that begins in life, we have new opportunities to love others as we serve Christ.
I know this is painful to go through but it is so refreshing to read about it here, not about what happened but the awesome encouragement that followed and that we can have this type of discussion. Christ is King!