Similarly, I went through the scenario in my mind thinking through "what if CW is telling the truth?"
When listening to Levi from last night's radio show, iirc, he mentioned CW and speculation into his character towards the end. It got me thinking.
If you think about the idea of someone (CW) staking claiming to the supposed heroic act of hiding his children in oil tanks, with the intent of preserving SW's character due to her actions, one can speculate that he intended to simply carry on with his life with SW's deed "swept under the rug" after this. He knows SW is dead because he killed her, and that the children are dead, but he is personally committed to a lifetime of sticking to his story so that nobody will ever think poorly of SW.
So for someone who has already mentally committed to preserving his wife's ghastly murders of her children for the foreseeable future, why would this same person cave so quickly to LE even with the drone evidence, or whatever else they may have presented him with that ultimately led to the confession? Logically I can't believe that the same person, with the personal integrity of saving their spouse from public humiliation by covering up the murder of their two children, would subsequently, and seemingly within hours, throw in the cards and give his spouse up as the one to blame. Why the change of heart? Therefore, I find it difficult to believe that. Those were my thoughts only. JMO.
JMO, I don't he ever had a change of heart about SW
throughout this entire ordeal. My thoughts are his most recent statement about SW murdering the girls has a lot to do with the contempt he feels toward SW, and is akin to murdering her twice.
It's also a way for him to try to mitigate consequences in the whole matter, to get a lighter sentence, because he's already proven that he does lie to try to avoid consequences. JMO.
All JMO.