My friend is divorced. That means his marriage was terminated and the bonds of matrimony dissolved.
Why did they get divorced?
They had a personality clash which led to many arguments. They both decided it was better to become independent of each other.
That is probably best, when you cannot get a long, that tends to happen.
In many countries monogamy is required by law so divorce allows them to marry other people. In the US it isn't as important for that reason.
What are some of those countries?
Many countries in Africa and the Middle East have laws against adultery. Cheating spouses can go to jail or receive lashes, if not worse.
Well thats a little harsh, thankfully I do not live there.