Blackie Weird, weird stuff. I agree with Corri you need to get away. Your wife is behaving like a kid. It's as if she gives no thought to the future when she does or says something. You can't get caught up in all this sh1t. This is a serious matter and it needs to be handled in a sensible adult manner. All this weird stuff has to stop. Tell her you are happy to help out with the kids. Hold off discussing anything about the finances/ what will happen after D. If this comes up again say you will discuss it later and work out a settlement fair to all concerned.
At the moment talking is not helping it is only making matters worse. You should just stop talking to her until she is prepared to be sensible. Who knows what she will do next if you let this continue.