the age difference is more like 30 years. Maybe you are right, It is none of my business, I did nothing then because I did not know what to do. I left the dojo altogether; it has been years now; it hurt I helped build that place; I put a piece of my life in that school. Both people joined years later than I. I saw them together casually, out of class, recently, and it made me angry again, but I see that the "love" will be brought in as a justificaition. I am not going to speculate on what else goes on in their lives, as I see this, I am not going to be comfortable with any situation in which such difference in power exists. The dojo cho did not see fit to constrain the man , he must have concluded it is love.