Does remorse imply self-hatred? In this paper, I argue that self-hatred is a false response to one's wrongdoing because it is corrupted by the vice of pride, which affects the perception of its object. To identify the detrimental operation of pride, I propose to study the process of change of heart and its impediments. I use the example of Kostelnička, from Janáček's opera Jenůfa, to show that the impediment to remorse is active already as a source of wrongdoing and self-deception. I identify three different aspects of Kostelnička's pride: social ambition, defensive anger and moral ambition. I show that it is pride as moral ambition that prevents the wrongdoer's acknowledgment of her blameworthiness by causing her obsession with her blameless self-image and corrupting her self-love. In the last part of the paper, I reject Kostelnička's initial self-hatred before her change of heart, because it is not based on an accurate judgement of her agency. Kostelnička's true remorse is thereupon connected with her inner transformation towards humility and with a reorientation of her attention towards the victim of her wrongdoing, as testified in her plea for forgiveness. The implied moral improvement and reconstitution of her relationship to herself and others opens the way for her coming to terms with her guilt.Keywords: guilt feelings and remorse, change of heart, self-deceptive wrongdoing, corrupted self-love, pride and humility, moral ambition 1 Self-hatred thus involves both self-loathing (based on "global" negative evaluation of the person as such) and the corresponding behaviour that damages one's well-being, such as self-torment, destructive behaviour and even suicide. I am following here Aristotle's remarks on hatred (Aristotle 1382a15) as developed by Ben-Ze'ev (2000: 382).