What does Alfieri mean when he says there was a trouble that would not go away?

When Alfieri refers to a "trouble that would not go away," he highlights the persistent and inescapable nature of the conflict and tension within the characters' lives, particularly in "A View from the Bridge." This trouble symbolizes the underlying issues of loyalty, betrayal, and the struggle for identity that plague Eddie and his family. It suggests that these conflicts are deeply rooted and cannot be resolved easily, emphasizing the tragic inevitability of their fate. Ultimately, it reflects the broader themes of the play regarding the consequences of unresolved tensions and moral dilemmas.