Meaning of "Sinews" by Drive Like Jehu

The lyrics of "Sinews" by Drive Like Jehu seem to reflect a sense of exhaustion and resentment towards someone who is unappreciative and selfish. The repetition of "My share, my share" and "Trashman, trashman" suggests a feeling of being used or taken advantage of, with the speaker finally reaching a breaking point and refusing to continue enabling this behavior. The repeated mention of finding oneself the door implies a sense of severing ties and moving on from a toxic relationship or situation. Overall, the song captures the frustration and anger that can arise from feeling used and unappreciated.