I consider friends to be someone I have things in common with, like to spend time with, and can trust and count on to be there for me in a supportive way. My X doesn't have those things, so I don't consider him in the same category as a true friend. That said, we have two children together who love us both. We are friendly to each other, the animosity is gone. I have forgiven him, and wish him the best, but he's just not friend material.
Oh, and he IS sober.
L