: They woke up with Katherine’s blood in their systems. Damon, devastated by Katherine's "death," was ready to die rather than turn.

The flashbacks dismantle the long-held belief that Damon was the sole villain in the brothers' eternal conflict. 1. The Death of the Salvatore Brothers

We see the humanity beneath the sarcasm. His love for Katherine was genuine, and his resentment toward Stefan stems from feeling replaced. His admission that "it wasn't the hate, it was the hurt" is a breakthrough moment for his character.