hi so sorry to hear what you are going through, i went through similar last year with my ex dp, although he said he still loved me, but he didnt want to be with me anymore and he wanted a break, (how can you have a break when you have kids together)
I begged and pleaded for him to change his mind, but he said it had to be his decision and he would have to want to make it work for it to work.
This went on for 2 months, untill i found out he had been seen out at a bbq with a new girlfriend, 2 days before this BBq he was sat telling me he missed me and what we would do once we had sorted things out between us - lots of wonderful things.
So it turns out he was basically keeping me there in case things didnt work out between his new girl, he basically kept me hanging on saying he just need time and space etc.
I am not saying this is what your dh is doing but i would be careful, although hindsight is a wonderful thing, i could kick myself at the chances i had to check his phone etc while this was all going on, but because i didnt suspect anything i didnt even think of doing it,
You need to try and be true to yourself, because you deserve it, you cant live your life for him, things will only work out if he truley wants them to, you cant make him (believe me i tried all sorts to make him change his mind) if he will go to relate then great, at least you know you will have done all you could to give the marrige your best shot, if he doesnt want to go then go on your own i did, and i can honestly say it was the best thing i did,it made me much more positive and made me realise i wasnt to blame,
I guess all i am trying to say is that you cant save the marrige on your own it need's 2 of you to want to make it happen..
Best of luck