I am Hurt by the attitude of my friend

I know many people who display megalomaniac behaviour about their intelligence and often these kind of people have a poor opinion about the intellectual capabilities of others. There is this person called X, who was also my classmate. Never thought how poor a opinion 'X' had about my intellectual ability all these years untill i met that person for some kind of business proposal 'X' offered. The business was nothing new and I knew and heard a lot about this during my previous stints of umemployement. What was extremely funny was the way 'X' messed up the straight forward business logic into a complicated thing and then present it to me, pretending it to be a new brand new concept. Then, as if to justify the messed up logic , started a lengthy explanation, as if i am the dumbest guy on the planet. X went on and on, revising and then asking silly question in between, liberally seasoning the monologue with quotations from autobiographies of Bill Gates, Azim Premji etc. The most insulting thing was, after completing the hammering, X askes gingerly "Did you understand anything!"

Gimme a break Mr Einstein, I have a life to live with my meagre intelligence, so test your skills on someone else.