Even my bad words did not bring happiness to him, otherwise this cheerful heart would find solace in a single insult.

This profound couplet speaks to the ultimate exhaustion of the heart. The poet is saying that even his harsh words and insults failed to bring any satisfaction to the beloved. He realizes that his emotional suffering is so deep that even the act of provoking pain cannot provide the solace he craves. It is a lament on the futility of emotional effort in unrequited love.