The king isolated himself from the rest after the talk with the fairy queen. The others did not bother the king and let him be for the moment. General Rohan led them as they created a plan to effectively find the prince and possible back up plans that they can immediately execute if something out of their expectation may happen.
What the fairy queen said disturbed everyone who heard it and what's more frustrating is that the queen did not want to tell anymore than necessary. She only gave them a warning and at the same an advice. It seems that the supernatural world knew something that they don't and yet they were unwilling to tell them.