Hi Fiona and Welcome,
I understand your fear that your relationship will change as you are in recovery. It might because early recovery is a time of change. My relationship definitely changed, and my relationship with friends also changed. I removed some people from my life, and when I did that, other people appeared who became teachers and guides. It was really quite amazing.
Try to remember that you can do this with your husband's support, but you can do it without his support if you have to.
The best thing I did in very early recovery was to get outside of myself. I got involved in a volunteer position that truly changed my life.