Demetrius is not the most admirable of young men. Having wooed Helena and won her heart, he shifts his attentions to Hermia, who will have none of him, but whose father favors him.
Told by Helena of Hermia and Lysander’s flight, he follows them to the woods, though deeply irritated by his inability to shake Helena from his coattails. He threatens her with abandonment and possibly molestation, but to no avail. His attempts to woo Hermia as she distraughtly seeks Lysander are no more successful. When Puck’s love juice makes him fall in love with Helena, he is as extravagant as Lysander in his praises of her, and runs off to fight a duel with the other man for her sake. When the lovers wake with their senses restored, he admits to Theseus that he is in love with Helena, and that he was contracted to her before he ever tried to make a match with Hermia.