Characters
I'm gonna marry Mr. Bixler.
— Vada ‧ My Girl

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
A blunt declaration of intent: the speaker announces a plan to marry a particular man, Mr. Bixler, as though the matter were already settled. The line's charm lies in its unqualified confidence, treating a huge life decision as a simple plan.
Context reviewed