Ok, I don't think I get it. Please bear with me.
In the previous version that I played (long ago) Maple's obedience was constantly lowering, day by day, despite the maxed loyalty and all the luxury I've provided (mansion was fully upgraded, she had everything I could possibly give, from clothing to extra privileges ). It eventually came to a point where I had to get rid of her and was glad for it. I even swore never to buy her again, it was so not worth the effort.
Now (naive me, I thought it would be easier this time) I seem to be having the exact same problem. Isn't "grateful" trait supposed to remove luxury requirements? Is she bugged? Is she coded to be insufferably picky, or is her obedience actually tied to something else?
I wonder - Aneirys used to be a major pain in the rear too, but at least for now, in my current game, she is doing much better, and I don't even have to bend over backwards to maintain her obedience levels. So why is Maple being worse than a spoied bratty noble?