[MichaelCorleone]

A substitute teacher, as I understand it, is there on a per diem basis. Pretty much at the pleasure of the school administration. They don't need an ‘acceptable’ reason to not use her services.

But I think they both should be fired for this reason: the entire school will have seen it and it will always get in the way of normal student-teacher relationships, not to mention teacher-administration and teacher-parent relationships. They simply won't be able to do their jobs and the students will suffer for it.

Unfair maybe but the students come first - at least they're supposed to.

[Lurking Libertarian]

A substitute teacher, as I understand it, is there on a per diem basis. Pretty much at the pleasure of the school administration. They don't need an ‘acceptable’ reason to not use her services.

But they can't discriminate based on gender. Firing her and not the fiance will very likely lose the lawsuit for them.