Educating yourself on alcoholism and recovery is probably great beginning. It will allow you to enter the relationship with your eyes wide open and idea of what your future could be.
Some RAs never drink again and can be wonderful partners in life. My brother is a fine example. He's been in recovery 20+ years and would be a wonderful catch for any woman.
My experiences have led me to decide I will never take the risks I see associated with a relationship with a RA. I am just not willing to put myself in the position of being emotionally/romantically tied to someone who may potentially relapse. I've been through enough personally, emotionally and financially to enter into a relationship with an RA.