If I didn't know who she was and watched the latest party stories, my impression would be she's a smug, attention-seeking, forty plus year old woman. Seriously, the smuggy smug face makes my hand itch to slap her lol.
^ I didn't know about Anastazia DuPee, but I remember (vaguely) AM Dupee. Sounds like quite the wedding, he has major family money. He was friends with Damian and Rose was with him very briefly - something happened and she was very closed lips about it. I always felt he was sinister in some way. The main thing I remember was he used to comment on Rose's insta after she stopped seeing him with comments like 'Jewish'. Creepy guy. He also was seeing a really wild rich party girl who was in the news for some scandal. Or maybe it was her sister, now I'm wondering if it's the girl he just married.