"I think if she had it her way we'd find a single bi-woman and call it a day."
This prompted a couple of thoughts. The first is why can't she have her way? If that means you cut down on your play opportunities, so what. And even that needn't be the case if you attend a club or regular house party and are one of the couples who just do watch and be watched plus girl/girl, along with the occasional MFF. Especially at house parties, there are couples who happily play separately, so it doesn't need to be a single woman for that MFF.
My second thought is - and I don't mean to sound disapproving, because I'm not, merely curious - why don't you know what her ideal scenario is? And not just her ideal scenario but the personal cost of getting what she wants if she also has to navigate some sexual contact with men?
Finally, I now especially recommend reading that book and watching that program. I can pretty much guarantee that I've had sex with more women than you, unless you've been a complete ho for decades, plus I'm a woman who is very much in touch with my sexuality, and I learned a lot from both of them. And by a lot, I mean some of it was revelatory.

