Mopsey, If you are invited to the inlaws go! You've got several places to go to be w/family this holiday season. As for your h wanting you there for appearances, nope, I don't buy that. Believe me, if he didn't want you there, you'd know it. Go and have a wonderful time w/family (even if they are inlaws).
As for your h, it sounds like he's have some difficulty shopping this holiday season. It may be that he's searching for just the right gifts for you and your children. Don't allow thoughts of the ow to enter into your thinking at this time. It's your time to enjoy the holidays w/family and friends. Leave the ow and the mlc bs outside in the snow!
Your h will look at the "Faith" stone all day long. He will use that as a flashlight to bring him home. Faith is something he will need to work on, but it will come in time.
The new year is around the corner and none of us knows what it will bring, but there is always a couple of things that help us deal w/life and the trials and tribulations that it tosses us. They are: faith, hope and love. Keep those three things in the back of your mind and pull them out each and every time you think that the ow is in the picture. I don't see her being his main focus at all. If anything, she's way down on the food chain and is there maybe for him to talk to, but I seriously doubt that as well.
Mopsey, enjoy the rest of the week. Christmas and the new year are around the corner!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.