The charm of that flirtatious one did not affect my heart, and my sighs were without the grace of melody.

This couplet beautifully captures the agony of unfulfilled longing. The poet suggests that the true pain doesn't come from the beloved's playful charm or direct actions; rather, it originates from the sigh itself. The sigh becomes a constant, restless echo of separation, proving that the ache of memory is far more profound than any temporary encounter.