Thank you jacq and 50guy.

jacq, I think the take the high road is a good approach, but I am just going to do nothing with regard to the sister. I will never see her again. I just hope the family can refrain from talking s**t about me when my kids are with them this holiday.

My own sister called and I asked her if she were to send a Christmas card to my 2 girls, would she address it to them at my house or their father's house? "Well, your house, of course," she said. She thought it was very strange what my sister-in-law did.

50guy, thanks for your insights. I will never know if my H sticks up for me in front of his family since I won't be there. I do know that last Christmas, when I accompanied him and the girls to his family's holiday gathering, and they all knew the marriage was on the rocks, they were all very nice to me. My H told me later that he instructed them to treat me nicely and with respect. So maybe he is a good guy sometimes. Who knows. Reflecting back, I did not have such a great relationship with any of these people. It is a little like my marriage, I think--I always tried to see the best and make it better in my head than it really was. I need to stop making that mistake.

Farewell to the In-laws.