It is a religion that is hard on relationships. You have a small pool to pick from and whatever they say girls are disadvantaged as there are always more women than men. This results in men and boys picking on very shallow criteria. Plain spiritual girls and older single sisters are less likely to find a husband than pretty shallow girls.
This creates a panic so girls will marry young in fear that they will be left on the shelf. The society discourages young ones from dating so the first person you date is likely to be the person you marry even if they are incompatible. If a couple breaks off an engagement it is frowned upon so pressure to marry even if you have doubts is huge.
Engagements tend to be short so there is little time for people to really get to know each other. With all this there is small wonder that so many marriages fail. Boys can have an inflated idea of themselves whilst girls lack self esteem. Outside the organisation you may date many different people before you find someone you want to settle down with you take time and marriage isn't necessary for intimacy so there is no need to rush into things. Whilst the society is quick to criticize this, it does allow people to take time before making an important commitment.