Final answer:
Marjorie is the outspoken and opinionated character who manipulates others in the given text.
Step-by-step explanation:
The character described in the question is Marjorie from the given text. Marjorie is portrayed as outspoken and opinionated, with the ability to manipulate others with her looks and talk.
She often starts fights with Violet and is frustrated with Bernice's lack of popularity. Marjorie is a dynamic character who adds conflict and tension to the story.