It was cobbled together badly as a result of the Congress of Vienna, and never really has worked well. It has been on the verge of breaking apart for nearly 200 years now.
Since it is made up of two groups who really don't like each other much, I doubt it will last another 200 years. But who knows.
If it does fall apart, I hope it goes like Czechoslovakia rather than Yugoslavia. But if folks don't like each other, they shouldn't be obliged to live together
I just hope the French get custody of the children.