Engagement and weddings are just 6 month - year clit rubbed finger bangs for women. They get to act more self centered and obnoxious than previously noticed, they alienate friends and family with the stupid behavior. They get married, have kids and then find out their husband is fukking his coworker that he's spending more time with than the wife.
Or the wife discovers that the man isn't going to be earning any more money, no promotion, so no expensive vacations, or jewelry, no moving into the dream house that she would be occupying by herself with the kids anyway. So now the husband isn't good enough.