On a positive note, the holidays can be a chance to reconnect. Having the ability to catch up can be refreshing or on the flip side, argumentative. It is important to set limits. Keep things light and fun. Don't bring up controversial issues or those things they might trigger old wounds. Also, remember to take time for yourself and plan to spend time with those who you know are going to support you and do things that you enjoy.
I hope you have a very happy holiday and many blessings in 2016.