It must have been one of the reasons why Maggie had not attempted to keep any of her mother's belongings which were saved by Damien who refused to let even her into the attic initially. She didn't attempt to explain to her younger brother but there had been a gap that was caused and it was hard to fill up right now. Maybe if her mother was still alive she would have been either proud of what she had done or she would still be trying to make her happy.
Maggie knew it was wrong but she was somewhat glad that her mother had passed away. She was undoubtedly a loving mother, and Maggie loved her mother dearly though she didn't receive the same affection and admiration as Damien. But she was glad for how things had turned out. Else her mother would never approve of this growing relationship between her brother and this slave girl.