I haven't been chiming in a lot on this thread, AH. You're getting some great advice by some of the people on here I respect the most.. I could hardly do better. Good luck on the one on one with her.
A couple of points on Ramius' excellent list. I got my own version of exactly the same points as these some years ago. With your kind permission, I'll dredge up my responses:
You’re the only one I truly love.
If I remember it right, I replied back-- what you did to me wasn't love. It wasn't even in the same ballpark as "love".. it wasn't even the same sport. People in love don't DO this.
It was just sex, it didn’t mean anything.
Oh boy, that old trigger phrase. Gets me every time (I'm being very subjective here). "Sex means something to ME, YOUR HUSBAND. Including the notion of you, MY WIFE, having sex with someone NOT YOUR HUSBAND. This can't be minimized or laughed off. Do you see this? I thought that I was special to you. I can see that I never really was."
The sex wasn’t good. (I'll add the corollary to this, "Sex with you is better")
"Somehow, I'm not buying that. The fact that you made the choice you did and for as long as you did indicates the sex was pretty good. The fact that you chose this outside of marriage and kept choosing it indicates you were satisfied with it"
The only reason I had sex with him was to keep the complements coming.
(My ex said "I was hooked on the attention")
To which I responded something like "And what was your game plan? Did you think this was sustainable.. that you could risk this forever? We're having this discussion, right now, because a friend of our marriage tipped me off after you were seen together IN PUBLIC. Did you think this would last forever? Was it worth it, trading "attention" as a price for destroying our family? This seems very shallow to me."
I see now that you are the best thing that ever happened to me.
(this should be obvious) You mean now, now that you've been caught red handed, now that two marriages are imploding, our children are devastated, their children are devastated.. NOW, NOW you see how I am the best thing that ever happened to you? Hey, I must look pretty good right now!
I only wanna be with you.
(also obvious) Well hey, I wanted to be in a monogamous relationship. Life sucks all around, I guess.
I didn’t mean for it to happen.
Lordy, there's the OTHER triggering stupid phrase I hate to see out of the cheater's handbook, but, yes, my ex actually used that on me, too. She's going to say it, I'm reasonably confident, so don't let it get you angry. I didn't handle it well:
"(curse words) You didn't mean for it to happen. You didn't MEAN FOR IT TO HAPPEN? You weren't seduced. You didn't trip on his penis. You were his active, eager accomplice. You helped plan your meetings. You scheduled to meet him when I (KingofNothing) was on travel! You didn't MEAN for it to happen? Calling BS on that! You absolutely meant for this to happen!"
Okay, that last one, I don't recommend my response. I don't react to being gaslighted very well at all. It's kind of intellectually insulting to think you believe their bullshit.
Anyway, that's where I was some years back, when confronted with these classics from the Cheater's handbook. Keep practicing a good response to the common excuses. Keep a level head. Don't let this ruin your last days in FL. Grab some beers. Put your toes in the sand. Watch some of those amazing sunsets and eat some good Spanish Food.
Dammit, now I want to go visit the Gulf towns again.