Tu vs vous

Question

I am trying why the woman's male partner addresses her as "tu" in one sentence, then as "vous" in the next sentence. Would please explain why?

Accepted Answer

There is only 1 occasion of reported speech from the partner, and he would have used ‘tu’ when addressing her. 
The subsequent “you” is the author again, and addressing women generally, hence “vous” is used.

Answer

Thank you Maarten for your response. When I worked on this exercise the second time, I read the Hint about addressing the audience. So I agree with you that "vous" should be used in this case.

Answer

"vous" is to address the reader, not the partner.