I usually don't bash people with apparent mental disease.
But Mayhem is a dick. Ariel booked him. Ariel had to of talked to him beforehand. He must have been semi normal and responding to Mayhem the fighter who is promoting a movie.
He books him and he comes on with this stupid character. Notice how he still tries to promote the shit out of his movie. I feel he likes to get all the attention from being so ridiculous now that he is no longer and MMA fighter.
He may have issues, but he is a dick on purpose to add to it.