Spazzergasm, the butterflies are sensory receptors in your gut telling you to be alert; that something's different and you should be on your toes. It stands to reason that it would be unsettling having odd feelings that manifest as odd physical sensations.
Nothing to be ashamed of. 'Liking' somebody, and all that goes with it, is terrifying. So, if butterflies are harbingers of all *that* rot, well, it's kinda like the rumbling of thunder before the lights go out, in't it?
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Heck no, I don't want no dang turkey bacon...