The speaker wants one simple thing: for someone to look after them the way they look after everyone else. They describe themselves as the "therapist friend," the person others lean on while their own needs go unnoticed. The poem makes clear how much this role costs. They put everyone else first and suffer in silence, so the hurt stays hidden.
The most striking lines come near the end, with the image of "arms full of scars" and "clothes full of tears." It's not fully clear whose arms these are, but the picture is of pain that has built up and been carried quietly. The final line, "but at least in someone's arms," adds a sad twist. Even when the comfort is imperfect, the speaker would still take being held over being alone.
The mood is tired, vulnerable and quietly desperate. The language is plain and casual, like a late-night confession, which makes the loneliness feel honest and easy to recognize.