a realistic ending would be zachs porn shoots he keeps posting on the school server being found and shared online for all, including with faces, destroying Sophie's career. Not that she would care as long as she got her dick fix, but it would be a proper end. Its not about the husband finding out, she has shirked her responsibility as an educator to her class for hooks ups, and there is the chance that she is boosting zachs grades giving him test answers not actually teaching. who cares what his goal is, though its probably to turn her out like he did with other girls, or why he specifically chose sophie, zach isnt an mc. From a story standpoint really the only thing that matters in the end is everyone knowing what sophie and zach have been up to ruining their careers. mainly cause im all about equality. whenever a dude bangs his student, college or not, he loses his job and runs off to live a boring life, sometimes with the person they banged, sometimes not. Heck, thats how we got walter white!