Pretty straight forward boys and I know this isnt typically a thing as much, so thats why Im asking.

Long story short, Ive been talking to a girl off an app and we've already had some calls and I'll be meeting up with her in the next week or two (we're not in the same state).

Now, literally days ago she had a friend thats been dating a guy and the guy just dumped her basically. So the girl Im talking to consoled her, and there was a discussion concerning a possible threesome between us three. This girl has mentioned doing it previously with this guy but my girl said no back then. Ive had a fmf threesome before and been trying to have another one for the last two effing years, lol.

Now, all three of us have been talking in the last day or two and the girl was up for it but also overwhelmed from everything in the last few days. Now, my girl let me know that this girl posted a snapchat story with this guy....so maybe they're back together already.

Regardless, that didnt kind suck to hear. I basically told her its really not worth it trying to correct her or tell her its dumb, as people are gonna do whatever they wanna do. You guys already know how people or women get with exes/bad situations sometimes. I semi told my girl that id probably be pretty direct with her (the friend) and let her know that, the girl (her friend) is making the wrong decision and the guy already basically made his choice to leave her....that doesnt just happen out of nowhere, people take time to get to that decision and it wouldnt just happen willy nilly....and that she shouldnt come back to her when this guy inevitably breaks her heart again....

Now, heres the question. Im semi trying to think of things my girl can say or tell her to possibly make her reconsider and come back to us having the threesome. Ive used different things like boyfriend destroyers ("Oh im sure hes PERFECT. Im not trying to marry you and take your husbands spot.", etc lol) beautifully on girls that had a bf if i met em while out.

Im curious what you guys think would be the best argument or angle for preventing this girl from really going back to the ex or possibly make her possibly realize shes wasting her time?

I get usually this is useless and theres no point. Thats normally how Im operate. Im just wondering if theres ANY type of appeal I can tell me friend to make to her that might get in her head or possibly work to reconisder.

Tl dr: Talking to a girl with a friend that was up for a threesome as the girls boyfriend just dumped her. Shes been overwhelmed in the last few days and apparently posted a story on her snapchat with the guy that brokeup with her? I know sometimes people like this cant be saved until they get burned and really hit rock bottom. What topic or mental thought or appeal or persuasion method would be the most viable, that I could tell me girl to tell her, to make this girl reconsider going back to her ex/realize shes only gonna waste her time and he doesnt give a f&ck?