Shakespeare's A Midsummer Night's Dream

I recently finished reading Shakespeare's A Midsummer Night's Dream in The Norton Introduction to Literature (fifth edition).  I noticed a detail in Act II, Scene 2 that may be significant.  After Puck applies love-in-idleness to Lysander's eyes, Helena notices him and says, "Lysander, if you live, good sir, awake," and Lysander replies, "And run through fire I will for thy sweet sake" (II.ii.102-103).  This section of the play is written in verse, so it's not unusual that Lysander's line rhymes with Helena's, but I think it may be significant that the resulting couplet is formed by two characters.  Helena is the first living thing that Lysander sees when he wakes up, and because of the love-in-idleness, he becomes enamored with her.  That his first line after waking rhymes with hers indicates his desire to be with her.  He complements her poetically in the same way that he wants to complement her romantically.

I feel I must admit, though, that earlier in this scene, a line of Demetrius's dialogue rhymes with a line of Helena's.  She says, "O wilt thou darkling leave me?  Do not so," and he replies, "Stay, on thy peril!  I alone will go" (II.ii.86-87).  Because Demetrius is not at all interested in Helena, however, this instance of rhyming dialogue between two characters doesn't carry this extra meaning.