The speaker expresses a strong aversion to marriage, linking it to a desire for freedom and variety in life. They view marriage as a source of constant security that could restrict personal growth and adventures. Instead of being anchored, they long for the thrill of exploring new experiences and opportunities.
This desire for change aligns with the metaphor of shooting off like a colorful firework, symbolizing the joy of spontaneity. The speaker prefers the unpredictability of life, suggesting that a conventional commitment would limit their potential to embrace life's vibrant possibilities.