Nobody in the poem is hurt out loud. The speaker is a teenager, judging by the details of school and friends, who is in love with someone who barely seems to see her. She describes the small efforts she makes to be noticed: curling her hair, clearing her skin, wearing tinted lip balm and hoping he'll look. None of it works, and she compares herself to the girl he's with, who has blue eyes, long blonde hair and a thin waist.
The mood is raw, sad and a little self-punishing. She calls herself the background character and the person chosen last, and she admits she smiles for him while "secretly dying on the inside." The sharpest moment comes at the end. He once made her feel special, and now he makes her feel like nothing. That shift, from warmth to being ignored, is what the whole poem is really mourning, and it makes her insecurity feel painfully ordinary and real.