In this scenario, the narrator's boyfriend finds it astonishing that a lady would worry her precious little brain with something as thoroughly unfeminine as a book. Millay has selected the Shakespearean sonnet form for the framework of the poem. A sonnet consists of 14 lines divided into two quatrains and a final rhyming couplet. Shakespeare used sonnets to great effect in many of his plays. They are popular devices today because they are easy to understand and give much scope for expression. This poem uses all the typical sonnet features: octave/nona, sestet/tercet, and rhyme scheme ABBCCDDDEEFFGG. The first line contains the usual formal introduction, which in this case reads "Oh oh". This can also be written OOH or even just hoh. The next part talks about how the boy's action of finding Millay sad will make him feel terrible later on (future perfect). Then we get to the real core of the poem: the narrator's complaint that her boyfriend will regret what he said to her. She uses the present simple to describe her situation now, while she speaks - she is not yet married but already regrets what she did.