Interesting articles - never heard of financial infidelity as a term before. I agree that it should all be above board. Now, I will say that for my part, I've never done much lying or stashing or running up debt. That's what is so maddening: H claims that I've thrown all this money away but yet he has access to ALL of our account information and can see every dime I've spent (debit cards) from the grocery store to Macys. So, to me, my spending was pretty much an open book. I have never done a lot of shopping for myself - mainly for the kids. Occasionally there might be the little white lie involved, but most often not. Most often it was right there for him to see, he didn't say anything about it, yet now acts like I have run us into the ground. I'm taking ownership of my 50% of the financial stuff, but he is just as culpable, in my opinion.
On the other hand, he is 100% culpable for the romantic indiscretions, and I don't doubt I played a role in that because I wasn't a good enough wife meeting his needs perhaps, but I sure don't think I should have to own 50% of that.