Say, one of my great great great... grandfathers married a girl who was 16 when he was 40+, which was normal, because he was just out of a 25-year-old-long military service and ready to get married and settle. they lived happily for many decades (he died much earlier, of course) and had lots of children and a good household and everything went well. Clearly, he was not a pervert. But there is such a thing as a local custom and an accepted standard of the time, so the person you are seeing is outside of the accepted standard of our days and, if he were to pursue his interests, he would run into what is called "statutory rape", because our society and its legal system do not believe that women under the age of majority can consent to sex. So, to the extent that you suspect that he might actually pursue his interests, your staying with him might mean being close to someone who is in trouble with the law - why do you need that? There are lots of men who are attracted to adult women.