Aww. This is so bittersweet - I hear it as a sort of child's plea, though I don't know if that was intended. It reminds me ever so slightly of "You are my Sunshine", in that it just sort of has its own tune. It also reminds me of Sherlock which makes me want to bawl like a baby.
I'm not so great on the poetry analysis... But I like the almost-rhyme scheme that's going on here, and the repetition. It gives it that sweet, longing lilt... Though I'm not really fond of the punctuation in stanza three. Do you think a semicolon would work instead of a period in the third line? The the capitalization of "So" is very appealing to the eye, but it could be kept anyway, I think. I'm not an expert! I make no such claims! That's just what I think. And I really like this poem. ;D
~Tobi