Who was Millie? What made Mrs. Hall scold Millie?

Millie is the serving girl to the Hall family. What chapter are you referring to?

the answer is unknown to me. if i knew even a bit about the answer to this question I could have solved it but i know none about millie because i haven't read the novel so far

character sketch of millie

submissive would listen to whatever told to her by mrs hall and tried her best to satisgy her. she was
patient because even though mrs hall showed repeated temper tantrums to her and scolded her for no
reason whatsoever, she would listen , agree, and move forward to her next assignment