Things can fall apart so fast. Capulet's wife can testify to that. Having craved children and a big Capulet family, she has only Juliet. Her one child is nearly the sole joy of her existence. Well, maybe not.

She speaks to her daughter:

Talk not to me, for I'll not speak a word, do as thou wilt, for I have done with thee.

OK, is that the right thing to say to your only child when she's on her knees begging just to speak a word?

Lady Capulet really blew it and got into a co-dependency thing while her husband abused her daughter, much to his later regret.

For Lady Capulet things fall apart so fast, and she is left bereft, empty of joy and full of self-recrimination.