Here is a girl who is surrounded by people who call themselves her friends, yet she feels completely alone. The poem opens with big promises: they say they care, and when she admits she's lonely, they claim to be the cure. She starts to trust them, and she nearly opens up. Then they drift away.
The third stanza is the painful turn. They make plans without her, talk about her behind her back, and fail to see her cry or even notice when she leaves. The speaker seems to feel invisible, hurt not by open cruelty but by being overlooked. In the last stanza she thinks about leaving for good, but she stays quiet and keeps crying without a sound. The repeated "considered" and "continued" show her stuck between walking away and holding on. The mood is sad, quiet, and heavy, with a simple, almost childlike rhythm that makes the loneliness feel even more raw.