And it has been one of the greatest mistakes humanity has ever made. If there is a good reason, sure, you cannot be expected to live with someone who has been cruel or irresponsible towards you. But no-fault divorce just because you got bored? Fuck off, you made a commitment at the time. Relationships do take work, always have and always will. Especially when there are children a no-fault divorce is pure selfishness.
With that said, we only know one side of this story, so I'm not going to argue for either side in this particular case. I'm talking in general here.