Can you explain what the quote "Oh I am fortunes fool." means for the play Romeo and Juliet?

Question

Can you explain what the quote "Oh I am fortunes fool." means for the play Romeo and Juliet?

Answer 1

"Oh, I am fortune's fool!"

--From Romeo and Juliet - 1595 - Act III. - Scene 1. - Rows: 141

Romeo cries out these words when the full impact of what he has just done, and the consequences to be suffered, strikes him. His secret marriage to Juliet of the Capulet family, his own family's sworn enemy, had earlier prevented him from accepting the challenge of a duel made by Tybalt, Juliet's cousin. Romeo's friend Mercutio cannot stand by and watch Tybalt degrade Romeo, and so he takes up the sword, but is fatally wounded. In a dizzying cloud of grief, Romeo picks up his sword and attacks Tybalt ferociously, killing him. It is when Tybalt falls dead that Romeo realizes what he has done. He also knows he will now be executed (or banished) by the Prince, who had decreed that there would be no more battle between the Capulets and the Montagues.