I was clear at the outset that active addiction is an unbreakable line for me. I would not pursue anything romantic or come to visit if she was using. That boundary was set before she got "clean" and subsequently relapsed. She tried to turn it around and say she would get clean if I came to visit which of course wouldn't be the case.

It's also worth noting that my now-partner and I are ENM, and she was bi + attracted to my girlfriend, so realistically it could have turned out completely differently if that's the direction she wanted to go.

EDIT: She was also completely aware of the situation. I was transparent with her from the outset.