Necesito ayuda swingers, para ayudar a un cornudo.

Hello to all, I'm going to detail the situation, there's a girl we meet very often, always with the cuck's authorization, both are 27 years old, I'm 44, the point is that they have an open monogamous relationship (so far). Or I simplify it, she can fuck outside of the couple, but he can't. The thing is that the cuck started getting jealous because sometimes he blew some kisses and there's a certain affection, the thing is that he threw I'm starting to hate you, and if I liked it, your wife would get me). 1st, I don't have a partner. 2nd, the boy has no idea how many times I asked her to leave him alone because I thought it was unfair. But there's no negotiation possible, he doesn't want to let go under any circumstances, so I came up with this and that's where I need data. Why, contrary to what most people might think, I never did a partner exchange, never went to a swingers club, and I came up with this because her fear is that he'll screw someone who has contact afterwards or some Instagram slut, Then to avoid this step I said let's go to an exchange club, so he can do something, I invite you, you find something (he didn't like me saying that because he said if we all go she'll only fuck with me). And he said he'll think about it, the guy is totally in agreement, it's more like a form of extortion not to let us screw. Now it just lacks your recommendations. Where can we go? South zone or CABA? And how would be the vibe because it's a territory I have no idea.