I couldn't agree with brenalim more! (which I have said before AC).
I am going to struggle with wishing my wife "Merry Christmas" as well. There is a part of me that is like "what is the big deal". The big deal is that she is NO WAY being an active part of my life.
If I was going to "forget" that my w was my w for a moment... I would not wish her Merry Christmas. Why? Because she's not really a friend. She makes no point to care about me.
I would not send any kind of happy wishes to that person. Not because I would wish them harm, but because I accept that we do not have that relationship.
You need to start seeing your w for what she is RIGHT NOW vs. Who she was. She is a person whom you know and SHARED a connection with.. but is not even a friend. That may change at some point, but for now.. unfortunately it is what it is.
M(f): 40 D'ed: 8/12
Show empathy when there's pain. Show grace when warranted. Kindness in the midst of anger. Faith in the face of fear.