Within this matter, his family hadn't offered him any support. Even when he went back to ask for help, they simply told him to let go and to stop being obsessed.
Later, Ouyang Yue learned of Hao Pengyou's existence. Disliking the idea of his future woman still thinking about another man, he had someone poison Hao Pengyou. Nangong Feifei accidentally heard about this, stole the antidote to save him, and thus broke her oath, being dragged into Endless Hell.
Hao Pengyou watched his beloved laugh as she said she couldn't change her identity or go against her family's wishes, that this outcome was good enough, and then she got pulled into the darkness by a black vortex. Because he had been poisoned for too long, even with the antidote, Black and White Impermanence struggled greatly to save him. Since then, he had become what he is now.
Not a single person who entered Endless Hell ever returned. And no other realm has a passage to Endless Hell.
