I met my wife through the martial arts. If there had been a "school rule" against relationships, we'd have likely never hooked up. Our thirteenth anniversary is coming up.
We've had four relationships form and end up as marriages in our school. Only one of them resulted in a divorce...which places that ahead of the national average regarding divorces.
This is what I tell my black belts to keep in mind:
1. The school isn't a meat market. Anybody attempting to make it one is going to take a hike.
2. The sanctity of marriage has to be respected. If one of the two is married, that isn't going to fly.
3. If things go south, keep it out of the school. Had a guy and his wife sign up. Two years later they were splitting up. He tried to recruit people to side with him...I called him into the office and told him to keep his grievances off of the mat and out of the school. He could go and cry in his beer with anyone, anywhere, but not within the boundaries of my place.
Its worked pretty well over the last 12 years.
SCS