Originally Posted by MonoVCPHG
I'm sorry again. Getting the green light to have "just sex" with other women reduces the use of polyamory in this case as a tool to have casual sex. Sebastien didn't have polyamory imposed on him as the nature of the agreement is not polyamorous by definition. There are some very knowledgeable polyamorous people on this forum (I don't include myself in this as I am monogamous) who can lend some advice on this I am sure. I'll step back from this one now and let more experienced people help.
Take care and I wish you the best
And she only had sex with the other woman- I don't see how polyamory into play came in at all, which further begs the question of how was it imposed upon him?
If she started dating her behind his back and then said "Oh, I'm in love now, you gotta get used to this"- I'd agree she imposed it upon him. But that's not the situation.