Of the JW's couples that I have seen get married only three stayed together. One those couple I found had been sleeping together before they were married (they were reproved for it then did it again anyway they weren't caught the other times) and they split up for a time. They other that divorced some appear to do it right (WT right that is) and some didn't.
I quess my question is this is no sex before marriage a JW legend, (premarital sex is just hidden real well, hence the others just didn't get caught)or do for the most part those brothers and sisters somehow make it.
It just seems to easy to hide unless something happens. Which it does I know I've seen it happen, poor sister.