Answer:
Line number 9 shows a tone of determination.
Step-by-step explanation:
In a poem the tone is the feeling that the author gives to the reader through the words used in the text, that is, it is the sensation and the impression that the reader has of the words that are being read.
When the speaker of the poem says aloud "She deserves better," he is imposing determination in his words. He is showing conviction and is determined to show the reader that he believes it.