Extra Lesson Time

I would agree, but she goes back for more. And that's kind of the NTR way.

I'd say it's pretty clear he's been slowly breaking her resistance until finally manipulating her into having sex with him, not to mention admitting that she likes "masturbation" better than her husband. Definitely sounds like NTR to me.

It would depend on what their beef is with the tag - if the tag was missing, I can see their point. And if that reader is clearly in a NTR, I agree with you questioning why be surprised by the lack of good character of the cheater. It's a nice twist if that isn't the case, but it should be an expectation the cheater is going to be a floor-flusher even before reading the story.

Well, reading this again oddly enough, she does mentally denigrate her husband’s manhood pretty good all through out the story. She must have been forced into marriage bc she seems to view her husband mentality and physique as someone less than a boy’s.  The only thing probably keeping her from divorce is something like her husband providing financial security.