You mean, hypothetically, would such a remorseless person, once their affair was discovered, try to come crawling back to their spouse? I would think it would be mostly annoyance at having their cake eating uncovered that might cause them to make some kind of overture, to save face with their own family or kids or community? But who knows. I remember a woman on TAM whose STBXH actually expected her to lend him her car to help the OW house, or something to that effect. It seems really common for WS to somehow feel there was a justification, so maybe that's why we don't hear a lot about people who crawl back?
From what I've seen it goes something like this for a wayward wife:
She's on a high from being chased and having sex with two men. She is getting tons of validation, tons of great sex, tons of attention. She's on top of the world. Even thinking about running away with the other man, even as a fantasy.
And then the husband finds out and it's dramatic but she has someone else to go to, right? So why try that hard. In a way, it's even better, because she can live the fantasy full-time!
And then she runs to the other man, for whom **** just got real and no fun, and he tells her (after having sex with her one last time of course) in no uncertain terms that this was just a fling and not serious.
And then she goes running home... to a locked door.
And then she runs to the nearest toilet to throw up, because she's just gone from having the attention, love, support, and lust of two men to zero men. And then thoughts of the kids and "what will people think" and memories of the marriage come flooding in.
At least that's what I've seen. Unfortunately.
For the guys I've seen go through it, it seems to be more like "Oh, **** the wife found out. I'm going to end up broke and alone and everybody's going to think I'm an *******. Maybe she wasn't so bad after all."
I've never seen one (personally) where there wasn't at least an overture of being open to going back after the affair. Even a brief one.
My own ex, for example, was willing to "talk about things" if I agreed to pay her lawyer bill. Not an emotional pleading, to be sure, but it happened.