Well yes, BIB - but when did they ever do anything that would put the kids first? Never. They're both so infantile and needy, it's not true.
Can't see PA ever leaving CAN. Where would he go? What would he do? But yeah, you're right, as long as CP is in the picture, the antagonism will continue imo. And CP seems to thrive on it if the 1st ep of his show is anything to go by.
I think, deep down, he knows CP gets him what he wants. Without her he will just fade into the background once more, yes he will have plenty of money, a better relationship with his ex wife and maybe even his kids, but I think he is too far gone in the fame game to be able to just give it up.