What do you mean by: "For better and for worst"?

What do you mean by worst?
What is the worst you can imagine?
Is your worst a bearable one?
What do you mean for better and for worst?
For better is easy to understand. We all want to believe in "happily ever after".
But what are the limits of worst?
And why don't you give a better explanation? A list, or something.
Worst is a dangerous word. A word carrying nightmares hidden in soft letters.
What is the worst thing for you? What is YOUR limit of endurance?
Because it might be different from mine.
When you say those words, people barely hear you. They're busy making sure their look is great, their friends are having a blast.
But, really, do you have any idea of what you're saying? what you're telling them?
You're telling them to bear the unbearable, if it comes...
Till death do them apart!!!!
You're deliberately putting people behind bars! (golden ones).
You're telling them to never think back again. Even if heaven turns into nightmare. You're telling them to hold on when everything is collapsing.
You're telling them to be saints. To leave their humanity. To be your image.
Have you ever experienced "worst"? I mean the real "worst", not difficulties. Have you lived a daily nightmare? Have you the slightest idea about what goes on in couples' nightmares? Really. Have you?
Have you opened a door and saw suffering souls behind?
Do you know that worst wars are happening behind those doors?
You're just saying a mechanical sentence, without even thinking. You're just forcing others to hold time, change, age, experience, memories, hurt, wounds... frozen.
Do you really think it works?
Look around. Open doors...you'll see what your words have done to simple minded souls.
Have a look, and you just might not sleep again.