"Let me now be left alone, and let the Nurse this night sit up with you."
"What if this mixture do not work at all? Shall I be married then tomorrow morning?
Juliet is about to drink the mixture that Friar Lawrence gave to her. She can fall in a deep sleep, so people can think she´s dead. She will then get sent to the Capulet family tomb. Romeo will come to get her so that they can run away together.
Juliet is worry that the mixture won´t work and she will have to marry Paris tomorrow morning, but She doesn't want to marry Paris; she wants to be with Romeo.
Juliet decided to drink the mixture and fall into a deep sleep.