Nothing, he runs

This is too much. Bran had just been trying to support his new friend! He hadn't meant to barge into this world of incest and lust. Not possessing the willpower nor the words to respond, Bran simply panicked and ran. He heard Tommen cry out to him, but the words did not register in his head. He just wanted to get away.

Running through the door, Bran took a left. Luckily, there were no Lannister guards around to stop him, and he deftly made his way through the castle back to his quarters. He took the long way, avoiding all the guards and servants who frequented the main hallways. Bran had no wish to explain why he was running. So close to the safety of his room, Bran relaxed a little...