I'm an Asian born in USA but raised somewhere else. However, my girlfriend will insist I'm not American and nothing like American. She insists really hard that I doesn't look anything like people who born here. She'll laugh at my accent, grammatical error, language etc. She dislikes almost everything from outside the State. She gives me the impression that she thought people who born and raised in USA is superior than people from other places. Am I overeacting if I found these offensive?