A person’s wedding day is the happiest of their lives; there’s nothing on the horizon but life together. But, love can fade and people get whittled down.
When in love, it's easy to overlook the your partner's flaws. Even if you know they're a creep, you still look at that person with rose-colored lenses.
Part of being a good friend to someone involves making sure he or she doesn't end up dating the wrong people, whether they be creeps, weirdos or criminals.