A common enough thing I post, and I'm sorry if I already posted to you is, that her behaviors - her ACTIONS, not words - have shown quite obviously that she does not love you or respect you. Right down to fighting against you about the bedroom, refusing to sign the divorce papers, etc.
So given that she does not love you and does not respect you, then why is she here trying to stay married? Money? Stability? Reputation? Kids? No other viable options?
Hey, I've seen many, many, many, MANY women I met as a younger man who hadn't ever been "single" - went from one romantic relationship into the next. Overlapping, practically, even when no infidelity was involved. Is that it for your wife - can't be without a man? And you know what else - I have been reading this shit for a long time and I still have some issues - and I know a lot, not because I'm smart, but because I read a lot - and from what I could see, it is extremely rare for wife cheaters who WILLINGLY become "single." Very, very few. Either they want their lover, or they want their husband, but they rarely want to be "single." Why is that? I really don't know, but something is wrong about that there. Jumping from the frying pan into the fire.
So if your wife is not going to be with other man, then she is going to try to be with you. If you divorce her, she may be single because other man is not viable, doesn't want her full time, bit off more than he could chew, the sex was good, but who needs the baggage? Or maybe it wasn't his cup of tea, the sex she wanted? Who knows? To me, it is obvious enough, that dude wanted to fuck and fuck alone - he didn't give a flying fuck about your wife besides sex. He put up with what he must in order to get what he wanted.
I'm assuming that through your marriage, before the affair, when everything was good - you didn't overly text and message and communicate your wife. A handful of times a day, maybe not even. I don't think that is unusual for a man, I am a man, and I don't want to be the representative for my sex, but I don't know many men, if any, who like to text all damn day. Would prefer to set up a meeting and go meet. So I always wonder with these so-called men who fuck other men's wives. Number one, where I came from, you could get an ass-kicked at minimum, and most would say you got what you deserved. Number two, with all due respect to any upstanding men who like to post about sex all damn day, but what's up with these guys? It's got to be that mostly they just want the sex, right?
I mean, your piece of shit other man, that guy couldn't enjoy having to keep texting and working it all day long, could he? The sex drive is primal, but damn, that's too much damn work for me. I don't need the baggage of that kind of all the texting and sexting and all that shit every morning, noon, and night. I don't have the stamina to keep after that, even if my values would allow it.
So anyway, sorry for my rant, but yes, I agree, it's tough to swallow watching her defiantly thumb it in your face the way she did, and afterward she didn't even give you a good fake hysterical hyperventilating snot-blowing cry, she kind of just stayed basically defiant and in-your-face. Ask her for a good hysterical hyperventilating snot-blowing bawling rolling on the floors flailing arms fit - it helped take the sting out of it for me.