Caliguy, I don't know what to say, except that from what I've read, coparents can't really go dark.

If you think your S would like to spend family time together, you could look at it as making this easier for him by going.

Be light, warm and breezy with her if you do go, right? Avoid R talk, focus on S... I mean, this is what you'd probably be doing if you were divorced, right?

M:54, H:55
T:33, M:27
12/13 BD: EA
01/14 BD: PA, H leaves
03/14 H & OW break up
05/14 H says he will file for D
08/14 H initiates D
09/14 H wants to R
12/14 Still bungling our way through R