In act IV, scene 5, page 39, it says, “Oh in this love, you love your child so ill that you run mad, seeing that she is well.” This means that they cared so little about her, that they wanted her to do what they said, not what she wanted. Because of the way they talked to her, and treated her it drove her mad, she couldn’t take the agony anymore.
A good example of this agony that she went through, is on page 33, Act 3, scene IV. It says, “Hang thee, young baggage! Disobedient wretch! I tell thee what: get thee to church o’ Thursday, Or never after look