In order to argue that Juliet is unjustified in her deceit the audience must make a positive assessment of Lord Capulet's intentions, both toward his daughter and toward Romeo. In Act I Capulet comes across as a wise and benevolent father. In Scene 2 he appears to be a man that is totally interested in the happiness of his daughter. He initially claims that his daughter is too young to marry but when pressed by Count Paris he insists that the Count win Juliet's heart. He will not approve of any marriage unless his daughter is in approval as well. Likewise, in Scene 5 Capulet warns Tybalt against fighting Romeo and even suggests that Romeo is an honorable young man:

Content thee, gentle coz. Let him alone.
He bears him like a portly gentleman,
And, to say truth, Verona brags of him
To be a virtuous and well-governed youth.