Identify and briefly explain the two applicable legal issues

Pauline works as a financial analyst for an accounting firm located in downtown Vancouver. The firm is not unionized, and she is an employee. She has been working for the firm for over 5 years. Her employer has treated her with courtesy and respect. Pauline has recently become pregnant and told her employer that she will be looking for maternity leave. Her employer agrees but subsequently treats her with disrespect and sometimes is verbally abusive. Her employer also does not give her special projects without any reasons. Working on such special projects provides bonuses pursuant the employment agreement between Pauline and the employer. After some time of this, Pauline becomes overly stressed. She decided to quit.

Help me identify and briefly explain the two applicable legal issues from this fact pattern.