Arthur heard Heine heap so much praise on him at once and immediately knew things couldn't be as simple as he thought.
Getting this Jewish German nationalist poet to insult someone was easy, but obtaining a single compliment from his mouth was as hard as climbing to the heavens.
Lisi, the young piano virtuoso in Paris, must have had a major falling out with Heine to provoke such a sharp and caustic nature from him.
However, from Heine's words, it seemed they likely had some personal grievances rather than a disagreement in political views. Otherwise, Heine would probably have cursed Lisi as having German hemorrhoids accompanied by urinary incontinence, much like he did with Metternich.
