The earth hath swallow'd all my hopes but she,
She is the hopeful lady of my earth:
But woo her, gentle Paris, get her heart,
My will to her consent is but a part;
An she agree, within her scope of choice
Lies my consent and fair according voice.
It is significant to note here that he says he will never consent to any suitor who has not wooed and won Juliet's heart. Her consent will weigh heavily when he gives his own consent. That will change in a matter of days.
On the night of the famous Capulet party, Juliet's mother asks Juliet how she feels about getting married; Juliet says it is something she has not much thought about. Her mother tells her that Paris is interested in Juliet and asks her daughter to look at him tonight at the party with an open mind, since it many other girls (including herself) are already married at this age. Juliet agrees, saying:
I'll look to like, if looking liking move:
But no more deep will I endart mine eye
Than your consent gives strength to make it fly.
This is true obedience, as she not only says she will look as asked but she will not overstep her position as a daughter and take any action on what she sees.
Everything changes in the relationship between the Capulets and their daughters because of two things: first, Juliet meets Romeo, and second, Tybalt is killed. Hours after she meets Romeo, Juliet marries him. Though her parents do not know it yet, this causes an insurmountable rift in their relationship with Juliet. Once she was modest and obedient; now she is headstrong and dismissive of her parents' authority.
Once Romeo kills Tybalt, the relationship between Juliet and her parents is irrevocably broken. While Juliet mourns the loss of Romeo who has been