Some think that wedding vows are just the words you say as the ceremonial requirements for a marriage. But the truth of the matter is that these words, these vows, are a verbal contract of agreement in how you expect to be treated and how you will deliver the conditions of that treaty via your love and commitment promises. Maybe it should become standard procedure to frame vows and so in bedrooms, living rooms and kitchens all over the world, anytime a spouse is acting like a damn fool, you can refer to the contract written on the wall.
You do hear of stories where some psychopath's mother and father stick by their child even though it has just been revealed that he has butchered 15 people. I often wonder what would break a parents love for a child, I mean a parent that loves their child in the first place because the condition of automatic love is not as prevalent as most people would think either.
You can attack them physically, burn their homes down and kill their fellow country men, but they will still approach you with the desire to build bridges and create peace. This takes a higher form of love that I think most human beings would fail at - badly and nobody could blame a single soul. But surely, even this strength of compassion has a limit. Even the Pope said he would punch someone in the face if they insulted his mother.