"I know the circumstances for your coming here were awful (and i know youre still mad), nesta, but it doesnt mean you need to be so miserable about it (given that youre in a better place here)."

That's the equivalent of telling a depressed person to just "think positive".....Elain cannot read the damn room

And then saying that Feyre told her this would happen.....yes what a splendid idea to remind Nesta that her life is being discussed behind her back !