Either because of what she did because so everyone wont have to worry about Juliet going to romeo or if romeo and Juliet got separated and got sad because of that.
During the book burn liesel's school friend breaks his ankle
“It was a thrilling experience to be whizzed in a “lift” a quarter of a mile heavenward, and to see New York spread out like a marvellous tapestry beneath us. There was the Hudson – more like the flash of a sword-blade than a noble river.” I hope this answer helps you with what you are looking for.