Yes. With my abusive gaming addict bf, although in the end it was pretty bad, I learned to stand up for.myself and I learned what I wanted in a relationship. I learned it young and I learned it fast. I don't think I would have got to that point so early without that experience.
With my current RAbf, definitely. Although I dislike the drinking, I have learned so much about myself and have grown so much, in large part because it brought me here to SR. But also because it's otherwise a very happy relationship, made that way through both of our recovery journeys.
I am who I am today in large part because of those two relationships and I like where I am today. So I wouldn't change anything. Not one thing.