In this example, we do not know whether Lola was fighting with someone or whether she was alone. We also do not know if she angers easily or if it was fair for her to be mad. Finally, we also do not know whether Lola usually talks to herself. However, we do know that Lola feels angry about something she heard. We know this because she tells us that she "couldn't listen anymore."
Whitman had written a long poem and some of the readers might feel bored reading it, so he used this device to give some energy to it. Since anaphora is repetition, it keeps on getting in the mind of the readers thus giving emphasis to the ideas he expresses.
