What's beautiful is you do what you need to do to heal. It's a process with a path no ones where it will take you.
You're making choices. The simple of act of doing that shows strength on your part. Being hurt, bereft if it goes another way can happen.. but shattered, no. You're already picking up your pieces and making wonderful things happen.
Taking accountability is a good thing, too. Do what helps you heal. However, you don't have to fight your husband's battles, nor should you. That's his cupcake.
It's a process... you're following your path and doing great.