I wonder as well. I think you are asking the right questions. Clearly you are a successful woman in your professional life but haven’t found a way to use those same skills and sensitivities in your personal life. I think you need two kinds of help: a therapist and a lawyer. The therapist can help you understand what led you to make such an impulsive decision and how to take better care of yourself in relationships. The lawyer can help you understand how to protect your assets and what your legal obligations are to your husband. Once you have better information, you will be in a position to make new decisions.
Please don’t repeat the mistake of making a hasty and impulsive decision. You owe it to yourself to take the time to do what is going to be right for you over the long term.
I wish you well.