Melania's slapping away of Donald's hand as they landed in Israel made this fact even more obvious.
Well now it looks like somebody had a quiet word with the the Trumps because as they boarded Air Force One to fly to the Vatican they made sure to walk together, hands firmly clasped, in a rare display of unity and affection.
...but the goodwill didn't last too long. When the couple landed in Rome, they seemed to be back to square one.
Fortunately, Donald quickly found somewhere to put his hand.