Yep. My ex and I were both addicted to each other. It's really common to see cross addiction. I've read a lot about addicts/alcoholics joining multiple 12 step programs. I myself infrequently attend a few programs. I would diagnose myself as a love addict, and I'd consider him one as well. He often said we had a deeper love than he had experienced, which of course was due to his narcissism/alcoholism and my codependency, because if you look outside of that we literally had like 2 things in common. Not really the foundation for a long lasting love.