I don't think spew is a MUST...some don't go on wild spending sprees although a lot of them do...just not part of your H's MLC...he has the classic symptoms and definitely some major triggers for it!
Just remembered something that really shows how out there the thinking of a MLC'er can be.
We had been living with my parents before H left because we couldn't afford to keep our home, H wasn't making any money in real estate (not really working at although he seemed to spend a lot of time perfecting his selling techniques)...I had just lost my job and then H up and leaves me and the kids at their house!
I told him that he should give my parents some money for expenses of HIS family...and he said, "They owe me!" I asked how he figured my parents owed him anything and he said, "They never gave me a dowry for marrying you!"...now mind you we are in the U.S., not of any foreign ancestry for which this would be customary...but he felt that he should have been paid for taking me as his wife!!! (now mind you this was 25 years after the fact!)
See...no rationalization for that sort of thinking.