It's told that Qetsiyah cured Amara and killed her.
It's too told that Qetsiyah wanted Silas to take the cure and die for joining Qetsiyah for the eternity. But why Amara has been cured and died and Silas has too and they wouldn't be together. I mean, either they come on the other side or they don't. Why one would go on ther other side and the other one wouldn't ?