They all fell into despair for the ones they loved, crawling through the mud, struggling in hell, and they developed depression

because they couldn't get out.

Edith and Silas's experiences are somehow similar. They both risked all of them, tried to love, but ultimately couldn't have their loved ones. However, Edith managed to break free and knew that the person she loved left her because he had no choice, it was inevitable. As for Silas...

He also had to let go, but what's even more cruel was that after he regained his memory, the person who once loved him and gave everything for him turned around and fell in love...