Her husband wants her to be readmitted (to pick up where she left off) because he doesn't feel she was treated fairly and she "doesn't deal with conflict at all".
Like other posters, I hear the husbands voice and not the wifes in this. When I was working, I came up against a mother who moaned about the library issue rules for vacation loans, so I told her to write to the Chief Librarian, and take it up with him. Her daughter was standing beside her looking acutely embarrased. I checked with my boss later, he said he hadn't heard anything.
The OP has rightly contacted her Director, he's dealing with it, as is proper.