Christmas card for brother's separated wife
My brother and his wife recently separated. They have a young adult son (living on his own). They have not told their son about their separation, and may not until Christmas (or afterwards). I would like to send my sister-in-law a Christmas card, but am concerned that if I address it just to her that I risk divulging the split to their son. He is apt to be at the mother's home at some time and could see the card. I am worried that if I address the card to "The XXX family" that it will hurt my sister-in-law. Since it is even possible that they will reconcile before the holiday, I am at a loss as to how to proceed.
How should I address a Christmas card to my sister-in-law?