I was in the middle of experiment to prove my statement until you hit me with the word: VERIFIED. LOL I totally forgot this detail and i know social networks apply different procedures to the verified accounts so i quit my experiment. But you're right it's almost impossible for her not noticing that her posts are also shown on FB.
I agree on it doesn't make sense but i can make you a looong list consisting of her actions that don't make sense including keep deleting insta stories. She has unique personality and even if i usually don't understand the motivations behind her actions , i love it, i like her being unpredictable.
+ Why did she recently connected her accounts if she doesn't care?.. And i think you're also haven't heard of some recent FB features since you totally ignore some facts.
About her hair, i'm not sure if i want to see her hair in lighter shade but quite sure i'm not fan of short hair on her.