I am not sure how to say this except to just say it. Please dont take offense. I say things always because I care. But, I am not sure it is in your best interests to say that you are not sure what other changes he wants from you as if you are a job applicant or a shopping list.
You know what problems there were in your marriage. You should be figuring out what changes you need to make for YOU. Those changes are the ones that he will not be second guessing because he will have no doubt that they are for real.