Meganna, I am sorry for your situation. Yes it is very hard knowing that your spouse will not understand the underlying cause of the issue. It just makes matters worse when they believe that bailing out is the solution, especially when you have kids.
Do you know if the IC has talked to your husband about his childhood issues? I guess the first question would be, what do you think his childhood issues were?
While an IC certainly helps in understanding the self, i think a MC is more useful because in a marriage, an issue with one spouse applies to both. Your husband cannot think he can deal with his issues in vacuum.
So if your husband does not believe that the problems are because of his childhood, what does he think the reasons are? Does he blame them fully on you?
If you can try to understand 'why' he feels the way he feels, maybe you can work on figuring out the 'how' part.
BITS M 38 W 36 D 7 Married 15 yrs W left for 6 months in 2009 W Filed for D 01/03/11 piecing now...