My EXWH had a major shift in identity. Or perhaps I never really knew him, I don't know.
Several years before the affair even started, he become way more focused on his career, until it consumed him and resulted in very little time for his family. In his industry, there is a lot of socializing. He began to drink more, go out, karoake, late night partying. He even covered his arm with tattoos.
Then eventually the affair, with a party girl much younger than me, who had no kids, and was a big drinker. I NEVER would have seen this shift coming. And like you described, it's so far from where my priorities are in life at this point, it made NO sense to me.
That relationship didn't last, but he upped and moved 2,000 miles away from his kids for what he claims was a job opportunity, has a new SO, that is just a new version of the last one...extremely young, an aspiring model, no kids, party girl. He goes out drinking nonstop, sleeps in all weekend, lives the life of a 20 year old, and sees his kids every couple months because now it involves a 6 hour flight. He's a big ridiculous cliche.
Maybe your ExW will get it and come back to her kids, maybe she won't. It's hard to know why people make the shifts they do, isn't it? Thankfully, they have you to rely on, so try to focus on that, rather than predicting what her next moves will be, since she's in another world right now. I don't think I will EVER be able to make sense of this new found lifestyle of my ex, and I'm done trying.
[This message edited by NWfleur at 1:49 AM, October 18th (Friday)]