Character concept: A widely adored socialite who is so well-liked because she evidently just adores everyone right back. Not just social peers, those that outrank her and those beneath her, but everyone. She'll call every person she meets pet names, everyone is a "sweetheart" and "darling" to her, being just as interested in finding out what's troubling the heart of a random maid passing her in someone's mansion hallway as she is of the happiness and wellbeing of her own nieces.
The thing is, she's face blind as hell and also bad with names. So when she greets someone as "darling" and asks how they're doing like she's embracing a lifelong friend, there's like a 60% chance that she has no fucking clue who the hell this is and if she even knows this person at all.