Sorry but this isn't about him, its about you. Your not detached. TBH the marriage counselor thing was probably gonna make it worse anyways. He wasn't WANTING to go he was WILLING to go, that's a huge difference. But who cares, your still hanging on his every word, you haven't made the changes you need to make yet.
If your done, and I don't think you are, is cause you gave in, not gave up. Ending it, even now, will be on your terms, not his. Right now your upset, sad, and disillusioned. That's ok. But guess what, until you've detached, made your changes, made it about you, your gonna be back here in a few days wondering why again. DB'n is about helping you decide, not him.
Sure it looks hopelessly pessimistic, but again, your response are about what HE said, not what your doing. You need to stop reacting and pro-act. You still have work to do, im truly sorry about the news, but for now, you were pinning your hopes on his actions, and you know from all the great advice here, that's just not how it really works.
One last tidbit. Believe half of what you see, and NONE of what you hear.