Just before Juliet takes her own life, what does the Frias her that she should do now that Romeo is dead?

The Frias tell her that she must leave with him after Romeo is dead.

Explanation:

The Frias tell Juliet that she must leave with him because he realized that the watchman is coming to the tomb yard but Juliet refuses to go with the Frias and kill herself first with the poison but it is not sufficient so she take Romeo; s dagger and stabs it in her heart and die upon Romeo's body. This all happen due to the immaturity of Romeo when someone tells him that Juliet died so he did not confirm the news and drunk the poison.