Maybe it's just where I am in the process, but it seems more nauseating and emotionally manipulative to me than touching. Why would you thank someone for creating a wonderful family...which you're actively working to break apart?
It's possible it's a manipulation attempt. It's also possible she feels gratitude towards the father of her children for helping to create and raise them, and getting an "XH" card was an attempt to avoid any misinterpretation.
Originally Posted by tt180
It's in the outside paper recycle bin with the lid accidentally open.
I wager that feels good. It likely comes across as more emo than your earlier polite "Thanks" and walking away. Holidays are tough. I get finding it touching, then wanting to get rid of it!