I probably shouldn't tell you this, but Hermia ran away with Lysander. I'm so sorry.
MAN vs. NATURE
Whoops... Wrong man!
MAN vs. MAN
Really, Helena! What did you do? Woo them with your height!?
Helena betrays Hermia when she tells Demetrius that Hermia ran off with Lysander.
The Flower of Love, and Puck, as a faerie, can both be seen as representing nature. Puck's mischief and the fickle nature of love cause endless confusion among the mortals.
Because of Puck's mix up, both Demetrius and Lysander fall in love with Helena, causing a fight between the young Athenians.