If you can seperate sex from emotion then fair enough but he said that this girl is the reason he found sosuave. That tells me that she had a hold over him that no other girl did. Going back after 2 1/2 years is just his ego telling him to go go back one more time and I think most here know the repurcusions of going back. No matter how he feels, he is not in control of this situation.
She reached out to him so why now? Because she remembers how good he was compared to all the guys she has had since then? Boredom? To see if she can?
Seems she or rather still her own ego needs to know that she can have him again if she wanted to and I doubt any sex will actually take place.
I see no purpose or reason to go back but this is his gig and he can do as he chooses.
That is the concern here. It takes sometimes years to really own your emotions and truly become indifferent to someone, yet it can take merely minutes for it all to crash down and be back in the same old situation emotionally.
I have had many women come back. Few I have fvcked. One I tried working it out with and that was a valuable lesson learned the hard way.
Relationships end for a reason. Personally I dont want her after she has searched, fvcked, had another man's d!ck in her mouth, etc. Not that every chick hasnt done that before, but they didnt leave ME to pursue someone else and basically tell me I wasnt good enough.
Not good enough then = not good enough now. Even if she did realize that she made a mistake by cutting him loose, she made her choice. Its much easier to start with a blank slate than to repair something that is broken and stopped working. I think women have a motive for every intention when dealing with a man.
Maybe its best to say "I am going to be super busy that evening but I will grab some wine and swing by your hotel for a bit and we can catch up" and see how she reacts to that. If she is cool with it, show up, hug her, kiss her, escalate for sex and then bounce. Treat her how she treated you 2 yrs ago as she really doesnt deserve anything more than that.
She will know you are treating her like a wh0re and will either back out of her offer or let you do it. And if she lets you do it and you are indifferent and leave soon after, she will ultimately be mind fvcked and chase you.
If she says she isnt interested in that, just say "OK" and back off. It will still mind fvck her to see that you have total control of your emotions with her.
I wouldnt give her the pleasure of being taken out on a "date" in public after all this time.
JMO