At first glance, Monica seems to be a typical teenage girl, with a sarcastic, short-tempered character and a tendency to rudeness. However, upon closer inspection, her appearance hides vulnerability. She craves affection, love and understanding from her parents, but her parents don't seem to show much interest in her. In the past, Monica bullied a classmate named Lisa Winters at school. She felt a sense of envy, jealousy and inferiority, because Lisa received love from her parents.