Concerning that fiery dispute; I will no longer put my faith in it.

This couplet talks about the aftermath of a heated argument. The speaker has been through a sharp dispute, and as a result, their trust in the other person is completely broken. They've decided that after such an intense disagreement, they can no longer have faith or confidence in that individual. It's a declaration of a final break in trust, emphasizing that the nature of the argument has led to this irreversible decision. It signifies the end of reliance on someone due to a severe conflict.