This character bullies someone.

Bullying is a form of abuse. It involves repeated acts over time attempting to create or enforce one person's (or group's) power over another person (or group) , thus an "imbalance of power". The "imbalance of power" may be social power and/or physical power.

Bullying consists of three basic types of abuse – emotional, verbal and physical. It typically involves subtle methods of coercion such as intimidation.