Now, we have just witnessed one scene (Scene 2) where Juliet is upset, and, due to the Nurse's poor communication skills, she attempts suicide. Shakespeare follows this with the current scene, in which Romeo is upset, and, due to the Nurse's inept communication, HE attempts to kill himself.
Many scholars believe that Shakespeare's use of this clever device strikes a balance, while displaying a "comparison" and "contrast" motif. Others, though, assert that the man was just stuck for fresh ideas.