I don't believe in being mean or spiteful to the WAS. Some LBS's may see detaching that way....but it's not at all.
Christmastime is hard to know just what you should do about gifts. I think every stitch is a little different and each has to make that decision. Here's how I think I would handle it if I were in your shoes. If I had a guest staying over during Christmastime, I would have something for the guest under the tree. In fact, I ususally have some small gift that could be given to male or female just in case we have a surprise visitor at the last minute.
To me, not having anything at all, would be mean-hearted, but that just me. I think if a couple is living under the same roof and have children opening gifts....they need to see mommy & daddy doing likewise. However, I would not get piece of expensive jewerly,or anything like that. Keep it simple.What would you give her if she was a counsin?
Try not to mind read and focus on relaxing and setting personal goals for the new year.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!