Dalilahshigaraki's poem is a crush confessed in real time. The speaker has already written thirteen poems about someone, which feels like far too many to hand over, and the person is just scary enough that sharing them at lunch is out of the question. Then, partway through, the speaker seems to realize that the poem itself is number fourteen. That moment is the giveaway: "With you I have a thing."
The feelings are a mix of nerves, surprise, and sweetness. The speaker thinks they may have mistaken earlier crushes for love, and calls this one a "wake-up slap." There's also a hint of loneliness, since the speaker believes they're the only one who really sees how cool this person is, and finds that both sad and kind of nice, because it feels private. The poem ends by naming the person, Park, and asking outright if they'll go out.
The mood is shy, funny, and hopeful. The casual, chatty voice makes it feel like a thought that tumbles out before the speaker can lose their nerve.