I am inclined to agree with you. There is nothing wrong with an FT having a relationship with a former student at his university, a sexual relationship or otherwise. It is the business of nobody except the two individuals involved. The only thing a teacher should not do is have sex with their own students. Whilst not immoral, it is certainly unprofessional. There might be certain conflicts of interest also. I know some foreigners who have had girlfriends at their own universities, but they were older and not English major students ( they were Chinese majors or some other thing like computing or accounting ) I think guys over 40 should only date students around the 24 to 30 year old range, but that's just my opinion. Maybe someone like the Silverboy poster would disagree.