The speaker describes a terrible first day of school. They arrive wearing a flower crown, something that seems to be part of who they are, and hope for a good day. Instead they are punched, kicked and called a loser. The quick, blunt lines ("And kicked / And called a loser") make the violence feel sudden and relentless, like a list of blows.
The turn comes when the speaker is lying on the ground and hears someone singing. The sound seems to reach them in their lowest moment, and the poem suggests it brings comfort. The ending is a little ambiguous: "My heart was sent" could mean the speaker's heart went out to this singer, or that they fell for them, and "No one knew" suggests it stays a secret. The mood moves from hurt and disappointment to something tender and hopeful, a small bit of beauty in a cruel place.