If Kim is a deep state pawn, schooled at a Swiss Private Cabal School, perhaps he was told to back out because the attempted assignation or attack at the hotel failed
agree sometimes the best deal is no deal
also when do you say NO
When you are in the command position and are in complete control and don't get what you want
or when you know your in a losing position and you choose to walk away from a bad deal and fight to the death to win.