Aud- I feel for you and will pray for you as you enter this very difficult time.
Maybe you need to do the Last Last Resort Technique. Give him the ultimatum of filing unless he does a,b,and c etc. If you truly are prepared to file and go through with it, do this and if he does not hold up his end, I believe and so will many others, that you have done everything possible to save your marriage. Having done that, you can be at peace with your decision.
Good Luck and may God Bless YOU
Me: 44 S: 17 and 7 Final-6-13-08 I once went to a psychic who told me I would soon feel cheated......