What is the primary purpose of marriage? To start a family. If your idea of marriage is that it is solely for those butterfly feelings or so that you can have the wedding celebration, you are more likely to have the marriage fail.
Yes, you need love to make a marriage work too. But that love is not in the form of shallow attraction that many mistake for love. The kind of love you need is the "this person will stick it out with me even when we can barely get any sleep due to a crying baby".
@houseoftolstoy Marriage is based on mistrust. That is why the man "proposes" and "vows" are exchanged (which females violate due to hypergamy) before she spreads her legs. Females do not trust the man will commit.
This does not mean both sides are not sacrificing.