Fyodor Dostoevsky's novella White Nights (1848) presents a profound exploration of romantic idealism and the inherent fragility of human emotions through the lens of a transient encounter in St. Petersburg. This paper examines the central protagonist, the Dreamer, whose idealised vision of love serves as both a refuge from his isolated existence and a catalyst for emotional vulnerability. By juxtaposing the Dreamer's fantastical aspirations with the grounded reality embodied by Nastenka, Dostoevsky illustrates the tension between romantic illusion and the sobering demands of genuine human connection. The study delves into how the novella portrays emotional fragility not merely as a personal failing but as an intrinsic component of the romantic temperament. Through detailed textual analysis, this research highlights Dostoevsky's early philosophical concerns with isolation, the redemptive potential of love, and the psychological costs of retreating into an imagined world. The findings suggest that White Nights functions as a critical commentary on the perils of romantic escapism, offering insights into the emotional architecture of characters trapped between desire and disillusionment. Ultimately, the paper argues that Dostoevsky's depiction of idealised love reveals profound truths about the human condition, where the fragility of emotions both enables profound connection and precipitates inevitable heartbreak. This analysis contributes to broader discussions in literary studies concerning the representation of psychological interiority in nineteenth-century Russian prose and the enduring relevance of Dostoevsky's insights into the nature of romantic longing.