Gabriel Sherman @ Vanity Fair's The Hive has gossip that the relationship is basically a wild card, implying that either could throw the other under the bus

“I COULD SEE ROGER FLIPPING PRETTY QUICKLY”: ROGER STONE, POLITICAL TRICKSTER, FACES HIS TIME IN THE BARREL

He professes undying loyalty. But “Stone knows Donald isn’t loyal. He calls him ‘Mr. Ingratitude.’”

[....] “Stone and Trump are like an old married couple,” the Republican close to Trump explained. “Stone knows Donald isn’t loyal. He calls him ‘Mr. Ingratitude.’”

Stoking Trumpworld’s fear is the fact that Stone is as predictable as an unguided missile. “Donald knows Roger wants to be a martyr,” the longtime Trump confidante said. Right now, Stone has cast himself as a victim of an overzealous prosecutor. His reckless goading of Mueller is the action of a man who seems like he wants to go to jail. “It’s good for his brand,” the confidante said. “It’s pathetic. Why didn’t he just tell the truth?” former Trump adviser and Stone protégé Sam Nunberg told me. But if given the chance to provide a John Dean moment that would ensure his place in the history books, it’s also possible Stone could recast himself as the hero of the Russia probe—while lightening his sentence [....]