Let's say you're right and there was an affair before the separation. Is that what Alice is after - a confession? What would that change in terms of the divorce proceedings? Nothing, she's in a no-fault state with a pre-nup in place. It would give her one more thing to complain about, so there's that.The poster may or may not be “well informed” but no one here can say with any certainty that Ioan did not start a relationship with Bianca prior to leaving Alice. And it shouldn’t be stated as “fact”.
Just because he gives a date in the court documents, does not make it true. He is obviously acting in his own best interests (who wouldn’t?) in the absence of any evidence proving otherwise. If he did admit to cheating, then it would be very problematic for his hopes of his children having a good relationship with Bianca. Why wouldn’t he lie?
Nice people lie too.