Hi Not normal,
I'm not familiar with your story, and also the divorce threats your H present to you. However, I think it is worth looking at a few issues:
- do either/ both of use use divorce as an empty threat? I.e. you throw these words out without wanting to do it or carrying it through? It eventually loses its power if one party "cried wolf" too many times.
- Your H doesn't want you to leave (because this time it's you who called divorce, not him),
but what is doing is telling you to list the things you will change, to get to you to accept the blame for the failure of the relationship? And by doing that he stopped you from going to a legal person? I think he just took power back into his hands.
I know you have a lot on your hands, and you're probably worried about the future of your marriage. However, it's worth taking some time to think if you may have been using some of the tactics he has used on you (

as we call it). Unfortunately, pwBPDs are masters of control, and when we try to manipulate them, it usually backfires on us.
So what is your goal for the marriage? Do you want to work out or are you seeking for ways to get out of it?