Treese, I have to agree with VH, they do what they do and when they want to. There is no rhyme or reason to their logic. The op in many instances is a few steps beneath them. They tend to pick them this way so that the op will have to look up to them and feel special that they were selected to tag along on their mlc trip. We all have seen some of their choices and let's face it, the op is certainly not a step up and in the right direction.
As for the card to your mil...you did the right thing. No expections from any of them right now. I'm sorry your mother didn't hear the the man/child, but I'm not surprised.
To get through this, you need to learn and accept that there are no expectations when it comes to the mlcer. If you are expecting him to do the normal, rational things that we know they use to do, you are setting yourself up for disappointment, heartache and depression.
Holidays will become easier if you plan to do new things, make new traditions and not rely on what you use to do for those special times.
I do hope your weekend is a pleasant one.
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.