Man, I would stop digging if I were you. Nothing to be proud of being a hot-head that cant control himself...especially in an airplane. Professionalism is what you really need to be demonstrating, not some macho tough guy crap.
And its not a cultural difference. Thats just a lame excuse for lack of self control. I was born and raised in a rough city neighborhood, but I still choose to conduct myself like a professional, especially in the cockpit.
Certainly no disrespect intended, but you should really think about this a little more carefully. There are enough problems in aviation caused by macho, arrogant behavior. It reflects poorly on us all. Even if the guy made a comment seconds after you taxied up, you are still in the wrong for your actions no matter what. Sorry, but there is no justification for this type of behavior whatsoever. Actually you were the inconsiderate one in this situation.
It takes the bigger man to just let things like this roll. We have a responsibility to each other to demonstrate at least a minimum level of professionalism. Dont be 'that' guy. No one really likes 'that' guy that needs to prove himself all of the time.