I've been trying to read through your threads. I haven't gotten through all of them yet but its impressive to hear how well you're handling everything. It sounds like you've developed resilience and you're doing a lot to move forward.
There seems to be something about Thanksgiving and the long weekend as I posted about my situation. Perhaps your wife was remembering previous Thanksgiving holidays you had together as a family and missed those times, and reached out as a result. Or maybe she realized being a single mother isn't so fun when there's no one with whom to share those special moments with the kids. Maybe she's testing you to see if you can be friends even though you said no.
I guess how you interpret the texts doesn't matter so much if you're planning to maintain the NC rule. I didn't get through enough of your threads to see if there's any chance at reconciliation in the future. It's good though that you're able to focus on the kids and making the holidays as happy as possible for them. I feel so sorry for all the kids who have to spend the holidays in a broken home for the first time. They deserve extra special care and love.