lol I might be the only one here not surprised about her choice of conversation starter and clothes. Don't get me wrong, this is a basic bitch if I saw one (Coretta's father has 2, TWO illegitimate children...so one mistake wasn't enough, he went for another, what an ass) but in these asian culture mangas the white lotus seems to be up on a pedestal.
The more modest the attire the better, the more subservient behavior the more ladylike and appreciated. Her serving him an orange is basically wifey behavior, I expect her to offer to bring him slippers because "he deserves them, he's such a hard worker after all".
This kind of thing is trending so hard in mangas and manhwas that I'm not even surprised this bitch came with a woe is me (big brother added for extra effect since for some reason it seems to melt idiot men in mangas) attitude to "seduce" him.