The speaker feels deeply isolated, and the poem slowly reveals that she has helped build that loneliness herself. Sound and color seem "off" to her, and the world has shrunk to "me and the ground." She compares herself to a hungry crow, grabbing at whatever is offered, yet left with nothing once people go. Then she admits something uncomfortable: she wants a settled life, but she is picky, calls others "tricky" out of laziness, and invents the claim that her friends are snakes so she has an excuse to push them away.
The final stanza is a long run of "I'm no one's..." lines, covering friend, lover, daughter, mother, sister, twin and foe. The repetition and tight rhymes make it feel like a list of losses, though the tone stays flat and almost matter-of-fact. By the end, even betrayal is impossible, because there is no one left. The mood is bleak, self-aware and quietly sad.