Its a simile, basically hes suggesting by holding onto anger, you’re just waiting until you act on it by taking it out on someone
You could write a sketch for a story about say, a a homeless kid who wants to be like the rich kid he meets because of his shoes but when they switch body's he becomes paralyzed like the rich boy was. Will that work for you? I hope it helped
Doesn't he think that he hears the heart beating under the floor board?
Because he hears this faint beating leaving him to be paranoid that the cops know that he hid that guy under there.
Answer:
because all the other girls was getting more attention and she needed to do something about it