Parents: help me parenting while separated (2)

[Ripe]

Early this morning I took my kids and SBTXW to the airport. They are flying home and spending Christmas holidays with their grandparents, W's parents.
I gave kids lots of kisses and hugs.
Was prepared to just tell STBXW "have a nice trip", but she came to me and gave me two kisses in the cheeks.
I stayed until the last possible moment waiving like a lunatic.
This is the first Christmas of a new era, the post-separation era.
I will now be alone for the next few days. Don't even have plans for Christmas Eve.