Then you know that your h has to first recognize it, then be willing to get help and admit his problems. Not something MLCers or someone with depression do easily.
I have been to several therapists and psychiatrists, While only one confirmed that MLC is very real, the others all said that someone of sound mind does not do this to his family in the way that these men have.
They say they are done, blame the LBS, act as if the are happy all in an effort to fix what is broken. And as they go through each thing in the search for happiness, I believe they become more and more lost until they look inside. It is when this happens that they may realize that they couldnt be happy because what was wrong was inside them.