Yeesh, all this on again off again stuff just sounds like a lotta drama. If you really want to continue with her, I would suggest making an agreement to not talk about Guy on dates, and to keep talk about her with Guy to a minimum as well. Just step back and let them get back together or stay broken up on their own terms, without you as any sort of middle-woman.
The major players. Me, 30ish bi female. Gia, girlfriend of 4+ years. Clay, boyfriend/dom. Davis, ex/friend/"it's complicated." Eddie, roommate & fwb.
The supporting cast. Eric, Gia's husband. Bee, Gia and Eric's toddler. Dexter, Gia's lover. Helen, Eric's lover. Izzy and Nikki, Clay's partners. Liam, Eddie's husband.