So I need opinions and advice, context me and my wife are in a open relationship and I communicated with my wife every step along the way.

So I started flirting with my wife’s friend a Polyamourus person who’s been in a monogamous relationship. We’ve been flirting for about two months ago, and we slowly built up tension to the point that we were planing to meet. I however had not realized that she had not communicated with her current partner these details, I assumed she was effectively communicating our actions to her partner. She outlined to me, that she would have to run it by her partner before we could meet up. However when she brought it up to her partner, they ended up having a pretty big argument and he ended up storming out. She ended up saying he wasn’t comfortable with us flirting or anything more.

I’d like advice on how I should handle this situation, I’ve already expressed respect for her relationship, but I would like to preserve my and my wife’s friendship with her. Did I handle this wrong how do you move forward in this situation. I’m unsure of how to move forward.