The speaker is being hurt, again and again, by someone who keeps saying cruel things even though the speaker already knows them. The "marks" on the body and the "trail of tears" suggest the pain may be physical as well as emotional, and the poem hints that the person causing it is ashamed of who the speaker really is. Nothing here is a one-off: the tears were there "yesterday / and many days before."
Then the poem turns. A third voice, "she," steps in, tells the bully to back off, lifts the speaker up and wipes away the tears. Her words are simple and kind: the marks are gone, calm down, you're fine. The last lines, "don't change. / stay who you are," feel like a gift of permission. The mood begins tense and worn down, with short, hurt lines, but ends in relief and quiet reassurance. The title, "confronting one," could point to the speaker finally facing the problem, with help from someone who accepts them.