Matt, I am not sure that it isn't a kind of sickness - just as when we have over eaten, or drunk too much, and need to get back to our essentials. What I mean is that it is not a state of spiritual health.
They need to go through it, to change, because of what has bought them to that state. I am changed too, and although my marriage was very happy, I can now see it could be better, because I am a different person now, as well.