In my H's case, it's not so much that he blames everybody else, although I do get blamed for some things, it's more about him excusing his own behavior. So, now as I'm typing this, maybe that is about blaming others.
My H doesn't like his behavior, but is so driven by emotion that it's like he doesn't know how to stop.
BTW, I also got the, "we were married too young" crap. I find that to be a common theme on these boards. Like they've been in jail for so long, now they need to break free.
As for the morals, I thought had strong morals... I really did. But I think that when one grows up without the proper guidance and role models, morals go out the window when things feel too icky. So, my H used to say that we'd never get D or he'd never cheat. But when faced with the situation, he didn't have the skills or emotional know-how to deal with it. So he went with it and blamed it on the M having been dead for years.
IMO, much of this MLC stuff is due to lack of parential guidance, boundaries and emotional support growing up.
Married 9 years Kids 5 and 6 Bomb 2006 H back and forth for a year M now back on track