Wife is Continuing Affair-When do I Start LRT III

[Train]

P.S. Another "Train question" for the vets here:

I completely agree with Wonka when she said this:

So from here and on....focus on the kids when talking with W.

"We are not talking if you are still with OM. Anything you'd like to discuss about the kids? None? Well, ok. Bye"

... because in the letter, Dev said this:

Going forward starting now, as long as you are involved in an affair with the OM, our communication only be focused on the logistics of the children's schedules, their issues, and exchanges.

HOWEVER, Dev also posed some questions for discussion relevant to their marriage/relationship. I presume, if his WAW chooses to address those questions since Dev posed them, that would be an exception to the "children-talk-only" rule??? Or no?

Can someone clarify for him (me - lol) what he should do if she wants to talk about those points now? Because that might even confuse the WAW: Dev asks questions, then adds: but, oh, we're not gonna talk about anything other than the kids as long as you're with OM.