After meeting Romeo, Juliet changed from a child to a woman. When Juliet is first introduced in the play, she is depicted as a young girl of thriteen with no thoughts yet of an adult life. Marriage, according to Juliet, was the furthest thin from her mind: "It is an honour that I dream not of." As a matter of fact, before she met Romeo, Juliet had never been in love or even had a crush.
The night Romeo and Juliet meet, the same day her mother asked her how she felt about marriage, Juliet decides she wants to marry Romeo:
If that thy bent of love be honourable,
Thy purpose marriage, send me word to-morrow,(150)
By one that I'll procure to come to thee,
Where and what time thou wilt perform the rite;
And all my fortunes at thy foot I'll lay
And follow thee my lord throughout the world.
Juliet's transformation is drastic and occurs within a few hours. She is a truly dynamic character.