Themes
O! I am Fortune’s fool.
— William Shakespeare • Romeo and Juliet

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker cries out that they are Fortune's fool, meaning chance has made a plaything of them. It is an exclamation of anguish and helplessness, blaming fate for their misfortune while admitting they have been mocked and led on by luck.
Context reviewed