So any guesses on why her parents lives turned to sh@t when she was gone? Was she banishing the ghosts? Maybe that’s why she was used to cleaning. Alternatively maybe she just has a curse repelling aura. Either way. I wouldn’t be surprised if her parents were being cursed by people who hated them
It's likely HER brand of cleaning and herself in general kept the spirits of misfortune away. She likely WAS keeping the ghosts away single-handed. So when she left, well, things got worse till eventually the Servants abandoned ship, helped by the family falling into ruin. Likelihood is the Parents likely wanted to use her as collateral, like Indian Givers, taking back that which they already sold (the Marquis already "bought" her from them as his 3rd wife, so she was already given, the Marquis was in his right to IGNORE their letters to return her. ESPECIALLY adding they didn't seem to want to hand back over "the bride price" at that! Father also ignores that as she is someone's WIFE, he lost his "Father privileges" to treat her like property. Meaning what he did is the equalivent of kicking someone else's truck just because it was YOURS before your traded it to them and then being SHOCKED YOU got kicked instead!)
Father's a POS who can't seem to keep his hands to himself, the second he sees her "BAM" right in the kisser, makes me wonder if he did this to her mother till she "displeased" him, then the Mother was ALL but happy to push the abuse onto MC like an entitled bitch!
Once the Business went to shit, they lost ANY prestige they had, as said, my Guess is in desperation of debts they owed, they thought to sell FMC despite the fact she was ALREADY the Marquis wife (well Fiance as there was no ceremony) and their like of thinking of anything but "Oh hey we have a daughter" (forgetting "Hey we SOLD that daughter, so think of something else" hence trying to DISCREDIT by claiming her "Creepy" even though their trying to RE-SEIZE her because despite "being creepy" by their asshole standard's "she's still a looker" to any rich "old man" willing to make her their wife being young at that
Assholes. But yeah at least I'm sure the 4th Prince got "sympathy" up till all his affairs finally became public, so sure those who saw FMC run off giddy that day are jokingly saying out of earshot of royalists that the girl "dodged a bullet!" As I'm sure the Resentful spirits ASSURE he will NEVER find a partner to love as punishment for "playing around with them" (Massive hypocrite with "wanting to marry for love" when really he's the type who WOULD cheat even IF he finds love)