Hi there future x wife,
Based on what you said,your H is not taking your concerns seriously and obvioulsy,to you and I anyway,that can lead to disaster.
I think before it gets to that point though,you need to really grab his attention and pull him out of his funk.You need to make him realize that you are at a crossroads and he needs to WAKE UP.
How do you do this? Well,for one if he won't go to counseling,you go,alone.There is no reason that you can't at least start the process here.This way you have a bona fide professional in your corner and you can start learning more about relationships and how to solve problems.If that doesn't stir things up,then start making a list of what you would like to see happen in your marriage and what you want.Also,what YOU plan to do to improve your marriage.Sometimes it takes one person to get the other motivated.
Next,if that doesn't work,make another list,of imrovements that you would like to see happening in the marriage before you consider a *separation.Usually,the word separation is a big wake up call.Hopefully you won't need to go that far but if that still doesn't appear to work,well,then you know you have some realy serious issues because the threat of separation isn't making a dent and that may mean that your H is not invested much at all in the current state of the marriage.So it's a good thing that you are bringing all this to the forefront.
Dismissing concerns is one sure fire way to make your spouse feel unimportant and can also can fuel resentment and anger.So don't think it's you.But start making more noise about the things you are unhappy with ok? Be firm but loving.You'll get a better response if you are not confrontational in a negative way.
Good luck.
O