Capulet and Montague are not more at odds than the houses of Roundabout and Wrightabout, let us say.
The opening scene shows the ball in Capulet's house and the first meeting of the lovers.
Then she is well and nothing can be ill; Her body sleeps in Capulet's monument.
A note in the Irving-version states that Capulet is a meddlesome mollycoddle not unlike Polonius.
Do you see how important the word "Capulet" is becoming to us, in its main idea?