Magic

Merlin has been in love with Arthur since the moment he got to know more about the prince of Camelot, every stupid and silly thing he did was like a love spelling for him, every courageous and adventurous things he did was like enchanting him to always take care of him and saving him from his murderous ideas. Merlin has it bad for Arthur. The prince is oblivious about his friend's love towards him, but something will snap him out of his innocence and relieve the truth that Merlin so zealous was trying to hide.