Figures of speech occurrence: The oxymoron in this line is used to show the nature of love. Love can be both fulfilling and disappointing. The oxymoronic phrases, 'brawling love' and 'loving hate', show how if the love is returned, it can bring much joy. However, if the love is one-sided and unsuccessful, then it can also bring much pain. It is an oxymoron because the words, 'brawling' and 'love' are opposites. The words, 'loving' and 'hate', are also oxymoronic.