lomonaaeren

Thanks! While the bite mark has another purpose in later chapters, I needed it here as a grounding point for Harry, or else he could easily have gone mad; he needed physical evidence for his love affair with Draco.

Diving into his own soul in and of itself breaks nothing. But now Draco has seen that blue-green change to his own soul, he'll start pursuing the answer, and the answer is tied up with his memories of Harry.