 Why did Sir Robert decide to disobey the king's orders?
These were followed by King Guy of Jerusalem and the host of Poitou. He himself, Sir Robert de Bouain, was riding with the Norman and English troops, just behind the men of Poitou. Sir Robert de Bouain twisted again in his saddle to look at the knight riding alongside him. He has reason to be bitter against Philip of France, as do we all. He has returned to France in haste, leaving the rest of us to fight the Saracen for the Holy Land leaving only the contingent of his vassal the Duke of Burgundy to remain with us." But he allowed his anger against Philip to color his judgment when he spoke harshly against the Duke of Burgundy.
 He is trying to protect his fellow knights
 It is the only way to get back at France  He is going to get chased out  He is trying to protect his fellow knights  He realizes following orders will mean his death