Good for you! I promise, if my MIL were still alive, I would be sending her something. I truly loved her, and miss her everyday. STBXW can like it or not. You have a right to miss the people you miss, and send them gifts if you feel like it.
It is awkward, though, isn't it? Do I, or don't I? I finally realized I'll continue R with people who like me independent of H. If he were to pass away suddenly, I would be in the same boat.
I wanted to be sure and stop by and wish you a Merry Christmas!