The speaker begins by listing things they can't make sense of: why people split up, how someone can leave without a word, and how anyone lives with themselves after hurting another person. The confusion sharpens in the middle, where the speaker points to a father who stops talking to his "baby girl" and who seems to care more about his girlfriend than his child. The poem suggests the speaker is that daughter, though it never says so outright.
The second half turns from what the speaker doesn't understand to what they do. Pain has taught them who to trust, how hard life is for kids whose dads are gone, and who would really stay. The last line, "where I should really be," feels unsettled, as if the speaker is still searching for a place to belong.
The mood is hurt and bewildered, but also guarded and quietly wise. The plain, unpolished wording and the lack of fancy images make it feel honest, like a private thought written down.