Characters
What bothers you more stepmother? That I am common? Or that I am competition?
— Danielle · Ever After

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker challenges a stepmother with a pointed either-or question: is her disdain about the speaker being common, or about the speaker being a rival? The second option turns the accusation around, implying the stepmother's contempt may be rooted in threat rather than status.
Context reviewed