Just a pocket pair, how often does a pair win when your playing 9 handed. That would be a simple question one could ask. Otherwise if you have a large enough sample of hands it will come out as the odds should be.
Ok so aces get cracked a lot being that they are the best starting hand. They do not get beat more than they win though. It is just so normal to remember the bad beats and forget the good or great wins with aces.
His call preflop is a mistake as you raised on the larger side but he probably didnt care since he had you covered. Same with his call post flop. He just got stubborn and lucky.