Well, the strongest of the relationships go wrong, but where? There's one giant mistake that people make, as time pass, people change and so the expectations from each other, but they stuck in each other's perceptions formed during the initial stage of their relationship. And they avoid confronting each other in the name of 'allowing each other space.'
And when this space widens, they become two islands separated by frozen waters in between them.
Look at the shocking reasons why the spouses have asked for a divorce.