Maurice has been dreaming a luxurious life since she was eleven. She's ambitious and selfish. She's obnoxious and greedy sometimes. She's competitive, the only good personality she has. She will do anything just to get her status up. The first time she saw Duke, she already knew that he is the one. The definition of Duke is he is the key to success so Maurice has to get that key, she has to get Duke even if she has to seduce him. She already planned everything in her head, on how to get the man but after she got to know that Duke is already married, her hopes crumbled down. She's competitive and ambitious, and those are not a good combination. So when she noticed how she affects the man, she bite that opportunity right away and gave him the idea, the idea of being Duke's mistress.