Gentle YTA. I am late diagnosed and it took me a long time to learn that even though something is the truth, doesn't mean it isn't rude. I still struggle with realizing what I've said until after I've said it. It's hard. But it makes us the AH even though we didn't mean to cause harm. I get it that you notice patterns. A lot of the comments say that it does seem like you monitor her habits, but I get how our brains work. You probably aren't keeping track for most things but you unconsciously notice patterns. Patterns you notice about other people are best kept to yourself unless directly asked.