She has mentioned this guy before, and that they have dated/hooked up and she would have an open relationship with him if that is what she wanted one.
I don't know how to feel about this. We have been having some issues lately, but have resolved to fix them. And then she just drops this like it's no big deal. I find it deeply disrespectful. Given the context of their relationship, and what she has told me about him.
How should I handle this? I am fucking pissed, but not sure if I need to ask her what they talked about first. But doubt she would tell me if the convo got romantic or sexual at all.