HB is one of the best on this site--I hope you get a lot from her insights.
You ask whether your H is in MLC. One of the best indicators is, did something happen in his life which triggered the change in him? The death of a parent or a friend, a severe health scare of his own, some devastating loss??
Also, were there issues from his childhood that were never resolved--some kind of abuse, dysfunctional parenting, etc? These are typically at the root of MLCs.
