It's really hard to say since I've been in the country for so long.
Well here's what I know. Finding a girlfriend *without going clubbing or useing your english teacher status* is no easy task for a white guy, for several reasons. First, most of these girls never envisioned themselves dating a white dude. In fact, they can only imagine dating a Japanese dude most of the time. Second, theres the family thing. I've dated many girls who could not tell their family about me due to the fact I was AMERICAN. Older people obviously have resentment towards my country and want to keep their family 'japanese'. So finding a GF can be a pain in the ass, unless you know where to look.
Hm...
The one thing I hate is how people freakin avoid you at all costs and when you make eye contact they cant so much as make a tiny smile. Or how they are always staring at you from a distance. Sometimes I have fun with it now and stare back.