Shelley's speaker begins by flattering and ends by begging. He addresses Harriet, whose mere look can quiet "the stormiest passion of my soul," and then slowly reveals why he needs that calm so badly. Somewhere between the first stanza and the last, her affection has turned, or he fears it will, into "scorn." The poem is a plea to be forgiven, or at least pitied. Its central idea is that love, once known, makes its withdrawal unbearable, and that real virtue means showing mercy to someone who may not deserve it. The title suggests the addressee is Harriet Westbrook, Shelley's first wife, but the text gives no details of the quarrel. All we learn is that the speaker thinks himself guilty, calling his own heart "most worthy of thy hate."
The form is tidy, which makes the emotional pressure inside it more noticeable. There are five six-line stanzas, each rhymed ABABCC, with a closing couplet that clinches the point: "Then hear thy chosen own too late / His heart most worthy of thy hate." The lines run mostly in iambic tetrameter, but the fourth line of every stanza is shortened to three beats: "In life's too bitter bowl," "Beneath thy scorn to die," "Amid a world of hate," "Weak is each trembling limb." That small drop works like a catch in the voice, a pause before the couplet delivers its blow. The rhymes also tie ideas together. "Hate" ends lines in both the second and third stanzas, so the word the speaker most fears keeps echoing even as he asks for gentleness.
The imagery moves between two systems, weather and medicine. Harriet's look calms a storm, and her eye is a source of "warm sunshine," so her approval is climate itself. Her words are "drops of balm," and the speaker's life is a "bitter bowl," as if he were drinking a medicine that only she can sweeten. By the fourth stanza the medical language has turned dark. He is pale, breathless, dim-eyed and trembling, and what threatens him is "the misery of a fatal cure." The phrase is a paradox. Her scorn is the remedy that would kill him. It also hints that her anger might feel to her like a cure for her own hurt, one that would destroy him in the process.
The speaker is also a shrewd persuader. Stanza one holds a quiet paradox: his only grief is that he has "known" such blessings, since knowing them is what makes loss painful. Stanza two bargains, claiming that anyone who basks in her eye must be ready to "die" beneath her scorn, and then offering himself as the unworthy case. In stanza three he flatters her as "Thou only virtuous, gentle, kind, / Amid a world of hate," which also corners her. If she is the only kind person alive, she must prove it. The request is made to sound small, "a slight endurance," set against his "lasting weal." The phrase "harder not for state" is knotty. It seems to hope she will not be hardened by her situation, but the exact sense is open to debate.
The last stanza is the most urgent. "Oh, trust for once no erring guide!" implies that someone else's advice is pushing her toward coldness, though the poem never says who. Then comes a rapid run of denials: "'Tis malice, 'tis revenge, 'tis pride, / 'Tis anything but thee." The repeated "'Tis" has the rhythm of someone talking fast, trying to talk her out of her own anger. He even recasts pride, the thing he accuses, as something she can redeem: "deign a nobler pride to prove." The last line lowers his demand. He no longer insists on love, only "pity if thou canst not love."
The poem's interest lies less in originality of feeling than in the way it dramatizes a mind under strain. The vocabulary of "thee" and "thou" and the sunshine-and-storm metaphors are conventional, but the shape of the argument is not. It moves from tenderness to guilt, from bargaining to physical collapse, and finally to a bare request for compassion. The speaker's self-abasement can look like manipulation, and the poem lets us wonder how far his suffering is real and how far it is a tactic. That ambiguity keeps it alive. We hear someone who is sincerely in pain and who is also, perhaps without quite admitting it, choosing every word to move the person he addresses.