as long as she wasn't overly obnoxious on the welcome wagon, i think he would probably tolerate her without laughing in her face and walking away. and i think the fact that she would be ballsy enough to tease him about his hate for america would keep him intrigued and probably even tell her that he would seriously taking her up on her "terrible american girl lovings" - after all the boy will need to get laid at some point before he goes stark raving mad.