The statement that best describes Federigo and his life is:
He is a lovestruck man who ruins himself financially trying to court a married woman.
This captures the essence of Federigo's actions and motivations, as he spends lavishly in an attempt to win the affection of Monna Giovanna, despite her being married and uninterested in his efforts. His love leads to his financial ruin, emphasizing the impact of his unrequited feelings.