Ah, so you already do have a V relationship, but that wasn't what you want. Is it too involved, or were you hoping to find a new partner of your own (making it more like a "Z"), or did you just want this poly experiment to be a temporary thing, and end up with just you and your wife, fixing the marriage?
What do you envision? What kinds of outcomes would work for you?
Love means never having to say, "Put down that meat cleaver!"