Lady Wilson was a typical person who would take advantage and get rid of someone when he or she had ceased to be useful.
Back then, she needed Jennifer to back her up in the detention center. So, at that time, she was extremely courteous to her and even treated her like her own daughter.
However, in reality, she loathed vulgar shrews like Jennifer.
Hence, she had completely forgotten about Jennifer since the day she was released from the detention center.
To her, Jennifer was just a necess