I have been following your "story" off and on for some time --and I am delighted to know that your husband seems to be moving out of the MLC "tunnel". I totally understand your concerns about your husband's lack of maturity --and your desire for him to emotionally be there where you are now. I am SURE that should I ever be faced with a similar situation, I will feel much the same way.
However, I truly believe that God can grow these men up --can heal them --can restore them in ways that we cannot comprehend. I guess that's why we call it "faith" --because humanly speaking we find it hard if not impossible to see how anyone coming out of a difficult MLC can become a whole, mature, healed individual.
If God put you on this path, He will see you to its completion. May this be just the beginning of lots of good news from you!