In "Romeo and Juliet," the speaker confronts love's painful challenges, suggesting that if love treats you harshly, you should respond in kind. This attitude indicates a struggle against the emotional toll that love can take, advocating for a tough exterior in the face of heartbreak. The idea is to counteract love’s prickliness with a similar toughness, reflecting a desire for resilience in the midst of romantic turmoil.
The speaker also seeks a disguise as a way to shield himself from the judgments of others, implying that societal perceptions can be harsh and unkind. By suggesting a "visor for a visor," he expresses a wish to hide his true emotions and protect himself from scrutiny. The mention of "beetle brows" showcases a recognition of the superficial judgments we face, and an acceptance of the need to armor oneself emotionally in the face of love's challenges.