Oh for goodness sake. Dh is not dd1's natural father. He shops for underwear for her, he even, shock, horror, supervises her in the shower 
He sees her the same way you or I would as a child, sweet, innocent and lovable.
They are not lurking around every corner.
Read the paragraph of the article and couldn't bear to read more, so please enlighten me if I have missed out on some life changing points.