In another part of the forest, Puck tells Oberon about the predicament involving Titania and Bottom. Oberon is delighted that his plan is working so well. Hermia, having discovered Demetrius after losing Lysander, enters the clearing with Demetrius. Puck is surprised to see the woman he saw earlier with a different man from the one he enchanted. Oberon is surprised to see the man he ordered Puck to enchant with a different woman. He realizes that a mistake has been made and says that he and Puck will have to remedy it. Hermia presses Demetrius about Lysander’s whereabouts, fearing that he is dead, but Demetrius does not know where Lysander has gone, and he is bitter and reproachful that Hermia would rather be with Lysander than with him. Hermia grows angrier and angrier, and Demetrius decides that it is pointless to follow her. He lies down and falls asleep, and Hermia stalks away to find Lysander.

When Hermia is gone, Oberon sends Puck to find Helena and squeezes the flower juice onto Demetrius’s eyelids. Puck quickly returns, saying that Helena is close behind him. Helena enters with Lysander still pledging his undying love to her. Still believing that he is mocking her, Helena remains angry and hurt. The noise of their bickering wakes Demetrius, who sees Helena and immediately falls in love with her. Demetrius joins Lysander in declaring this love. Lysander argues that Demetrius does not really love Helena; Demetrius argues that Lysander is truly in love with Hermia. Helena believes that they are both mocking her and refuses to believe that either one loves her.

Hermia reenters, having heard Lysander from a distance. When she learns that her beloved Lysander now claims to love Helena, as does Demetrius, she is appalled and incredulous. Helena, who is likewise unable to fathom that both men could be in love with her, assumes that Hermia is involved in the joke that she believes the men are playing on her, and she chides Hermia furiously for treating their friendship so lightly. Lysander and Demetrius are ready to fight one another for Helena’s love; as they lunge at one another, Hermia holds Lysander back, provoking his scorn and disgust: “I will shake thee from me like a serpent” (III.ii.262). Hermia begins to suspect that Helena has somehow acted to steal Lysander’s love from her, and she surmises that, because she is short and Helena is tall, Helena must have used her height to lure Lysander. She grows furious with Helena and threatens to scratch out her eyes. Helena becomes afraid, saying that Hermia was always much quicker than she to fight. Demetrius and Lysander vow to protect Helena from Hermia, but they quickly become angry with each other and storm off into the forest to have a duel. Helena runs away from Hermia, and Hermia, reannouncing her amazement at the turn of events, departs.

Oberon dispatches Puck to prevent Lysander and Demetrius from fighting and says that they must resolve this confusion by morning. Puck flies through the forest hurling insults in the voices of both Lysander and Demetrius, confusing the would-be combatants until they are hopelessly lost.

Eventually, all four of the young Athenian lovers wander back separately into the glade and fall asleep. Puck squeezes the love potion onto Lysander’s eyelids, declaring that in the morning all will be well.

The confusion in Act III continues to heighten, as the Athenian lovers and the fairies occupy the stage simultaneously, often without seeing each other. The comedy is at its silliest, and the characters are at their most extreme: Helena and Hermia nearly come to blows as a result of their physical insecurities, and Lysander and Demetrius actually try to have a duel. The plot is at its most chaotic, and, though there is no real climax in A Midsummer Night’s Dream, the action is at its most intense. With the falling action of Acts IV and V, however, matters will sort themselves out quickly and order will be restored.

Like Act III, scene i, Act III, scene ii serves a mainly developmental role in the plot structure of A Midsummer Night’s Dream, focusing on the increasing confusion among the four Athenian lovers. Now that both men have been magically induced to switch their love from Hermia to Helena, the vanities and insecurities of both women become far more pronounced. Helena’s low self-esteem prevents her from believing that either man could really be in love with her. Hermia, who is used to having both men fawn on her, has her vanity stung by the fact that they are suddenly cold and indifferent toward her. She reveals a latent insecurity about her short stature when she assumes that Helena has used her height (“her personage, her tall personage”) to win Lysander’s love, and her quick temper is revealed in Helena’s fear that Hermia will attack her (III.ii.293). The men’s exaggerated masculine aggression leads them to vow to protect Helena from the dreaded Hermia—a ridiculous state of affairs given that they are two armed men whereas Hermia is a tiny, unarmed woman. Their aggression betrays Helena, however, as the men refocus it on their competition for her love.

The potion is responsible for the confusion of the lovers’ situation; thus, Shakespeare links the theme of magic to the motif of imbalanced love, which dominates the scene. Had the love potion never been brought into play, the Athenian lovers would still be tangled in their romantic mess, but they would all understand it, whereas the fairies’ meddling has left both Hermia and Helena unable to comprehend the situation. Additionally, Puck’s magical ventriloquism is what prevents Lysander and Demetrius from killing each other at the end of the scene. Thus, magic both brings about their mutual hostility (to this point, Lysander has not been antagonistic toward Demetrius) and resolves it.