He Knew He Was Right by Anthony Trollope

The novel follows Louis Trevelyan, a prosperous gentleman whose mounting, obsessive conviction that his wife has been unfaithful corrodes their marriage and engulfs their social circle; his suspicion, focused on a close male acquaintance, escalates into controlling behavior, public quarrels, and failed attempts at mediation, while intertwined secondary episodes about other couples and relations highlight misplaced pride, the limited options available to women, and the harsh moral judgments of Victorian society—offering a sustained examination of jealousy, self-deception, and the consequences of insisting one is always right.

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