In "Onyx" by Jennifer L. Armentrout, the character Daemon experiences a moment of vulnerability that surprises him. His internal reaction suggests a mix of emotions that could include embarrassment or awareness of the feelings he has towards another character. This quote encapsulates a significant moment of character development, as it indicates that even someone as confident as Daemon can find himself caught off guard by his emotions.

This moment reveals the complexities of Daemon's personality beneath his often aloof exterior. The phrase "Damn me" signifies a self-reproach for feeling flustered, suggesting he struggles with his own feelings while trying to maintain a tough demeanor. Such reflections highlight the tension between his public persona and private emotions, adding depth to the narrative and engaging the reader with his internal conflict.