The Vampire Diaries Season 1 Episode 20 — =link=

Damon hated Stefan for taking away his choice to die a human. A tragic victim of the Mystic Falls vampire hunt.

The episode delves deeply into the "martyr complex" that Damon often accuses Stefan of having. Stefan’s refusal to drink blood is less about heroism and more about intense guilt for his past actions and for forcing Damon to turn. the vampire diaries season 1 episode 20

Stefan explains to Elena how he went to say goodbye to his father, only for Giuseppe to lunge at him with a makeshift stake. In the ensuing struggle, Stefan kills his father, impaling him with his own weapon. Damon hated Stefan for taking away his choice to die a human