@Doomroar
you're
really misunderstanding Lucy:
1. Lucy was trying to get Zoey to calm down, since (other than the snakes) he was insulting chise
2. Lucy just asked Zoey a legitimate question, and she did say 'you don't have to answer me' so she is clearly
not trying to 'interrogate'.
3. Lucy's expression and tone suggests skepticism,
not 'mocking'. she
doesn't know what Zoey's life was truly like so her skepticism is perfectly logical
although Lucy's wording/tone could have been nicer, onlookers: lian, fowler, and chise can all see that she is apologizing 'after all' and 'is definitely trying to be soft with him' https://mangadex.org/chapter/575634/18 .
Also, at the end Zoey did apologize to Chise, https://mangadex.org/chapter/575634/26 so calming him down worked.
my conclusion: yes, Lucy's sincerity
did get through the entire group there; it's a major reason Zoey calmed down enough for them to all basically become friends after that incident.
Lucy had a rough childhood, and only a shady auctioner brother for a current guardian, so please don't blame her too much for not being as soft-spoken/courteous as possible: she is still learning and after her family death issues get resolved (likely this arc?) she may change a lot.