I don't think people would marry today just because they love each other either. The system is setup in such a way that people often have an incentive to leave

I don't think people would marry today just because they love each other either. The system is setup in such a way that people often have an incentive to leave the marriage and perhaps with more women being financially independent they are just as concerned with the fallout of a marriage as compared to a good long-term relationship.