I concur, not you but your MC....what a strange way to make you both communicate. Saying it once wasn't enough he had to look you in the eyes.....WTF? Really? Did you feel better? Do you think your H felt better? I hope not.
Whether your H wants to work on the marriage or not is irrelevant. You have children together. He will want to put the issues aside. I don't believe either of you want to fight or be upset or walk on eggshells or have ripped up tummys from all of the anxiety. I say you don't know until you try. My H was ready to file for divorce...he and his father were working on the agreement. We've since started this way of dealing with each other, we've made small promises to each other and some bigger ones. So far, so good. We are learning to rebuild trust now. The next step that we will get to this week is together making a list where we both decide what we don't want to talk about anymore, fight about or even mention because it doesn't end well. Soon we'll try to conquer actions, but I think that is going to be much more difficult. But my H wants out too. He's been very clear he doesn't want to fix anything he just wants out. But he's trying this with me and much of it has to do with our son. Whatever the reason, why wouldn't your H agree to tabling the issues for a while to build some trust and good feelings then conquer the problems? Who says no to less stress? Try him. Ask him.
Stop every opportunity he has to say it's over, he's only doing this make sure he is walking away with a clear mind set that he did everything.