What your daughter's teacher and the other teachers did for you and you family was a wonderful Christmas gift but I would consider being outed on Facebook the greatest Christmas gift you will ever receive. It takes away all the fear and worry that comes with trying to live a double life out of equation. They now know what you are up to all you have to is admit it and let them know you are no longer under the control of the Watchtower. You have your husband and children what more could you ask? A lot of people on this board would love to be able to leave and keep their immediate family together.
If the Witnesses give you any crap about Jesus not being born on Dec 25 and how could you go back to celebrating it you can point out that it should be obvious to them that he didn't return in 1914 yet they hold to that date as if it were true and at least Christmas is fun.
I hope you and your family have a wonderful Watchtower free Christmas.