I think she's just crazy ╮(￣▽￣)╭
If I recall so far all we know is she believes she belongs with the Duke and is very interested in him, but other maids know and think she’s weird for it since the it isn’t like the Duke notices her
She's a noble lady. She's crazy in love and delusional, thinking that if she becomes a maid, she will get close to the duke and that he will marry her. It's all fictional. She also bosses around the other maids in the duke's household as if she were the duke's wife.
What's the deal with the maid again? Its been so long since I read the prev. season that I cant remember some shits. What even made this maid become delusional again? Was she close with the duke when they were kids or something?