The heart of this line is personal agency—Elizabeth calmly states that her happiness will be decided by her own judgment. The word “resolved” signals a firm boundary, not anger, which is why the emotion reads as determined. Austen sets Elizabeth’s “own opinion” against the demands of rank and gossip, a clear juxtaposition between inner compass and outside pressure. This moment fits her arc: after learning to question her first impressions, she now claims the right to choose a life that matches her values. The line also challenges the social ladder—birth and influence cannot override individual dignity. It’s a quiet but decisive declaration that love and marriage must be freely chosen, not dictated.