Yes, but Kim has also been jerking Trump’s chain a LOT. That doesn’t help the cause you identify. My guess is Trump saw the way Kim was yanking his chain and said, “You want to threaten to walk out? Fine. I’m walking out on my own terms. You want to get serious, I’m serious.”
BS. Fat face don't know how to act with Trump and now he's humping Trumps leg. And fat face fully understands, any more BS form him and Trump walks. End of story.
And Trump has the hostages and enough firepower to bounce North Korea off the lunar surface. Trump has the position of strength, Kim has zip.