As far as I understand it, the "page break" problem you're seeing is really just the way ePub books are designed. Unlike other ebook formats where the page count changes based on the size of the screen and the size of the font, ePub page counts are fixed. (I suspect they're based on a "normal" PDF-sized page, but I've never researched it).
So you get "page 1" for two or three page turns. You'll be on a page that's partly 2 and partly 3.
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