I am a 30-year-old J-boy and acquired U-graduate degree in US 6 years ago living in Japan right now after graduated. couples of months ago, I got to know a canadian girl teaching English to J-kids in Japan and I dated her some times. The problem I recognized recently popped up is that she knows big words of English LESS THAN I even though she is a native speaker of English and college-graduate! , so I was crashed. Because I have strongly believed that almost all native speakers of English are inclined to take it granted that people all over the world speak English for what English is "De facto lingua franca"(BTW, she didn't know meaning of this) , so I have made tenacious effort to polish my english lest I would be never scoffed at for my English as a non-educated by native-speakers just because I am non-native. I was discouraged by the fact that I see difficulty to talk politics, science, history, and other academic topics with her deeply, so I have recognized "intelligence disparity" between me and her and romantic relation would be over soon. Even if I think so, it seems that she wants to be in relation with me. Probably, she may take advantage of me as a useful interpreter, driver, and sometime cooker. Last but not least, needless to say, she is still a novice of Japanese. She strongly depends on me for japanese. I slightly doubt that she left real boy friend in her country and would take advantage of me as an “useful” guy in the name of boy friend based on that, 2 questions to ask you here. 1. Should I say to her like "make your voca better cuz you are Native speaker" clearly? I don't intend to mar her emotion, but I don't want one-night or temporal relation with her. I am 30-year-old guy, I need only the girl of whom I can expect permanent relation. I am afraid such a disparity would cause demise of romantic relation 2. Do all western girls think that they take it granted that J-boys serve as an interpreter for non-japanese speaking girls all the time, serve as a driver if they miss the last train before they call each boy friend , and boy friends are supposed to make dinner whenever they ask? I heard of the fact that western girls expect guys to do a lot of things.....In fact, she sometime asked me if i could make dinner because I am good at cooking according to her remark. actually, I gave ride to her sometimes. I am afraid that unilateral relation would be organized. it's not fair if it's true. I really need FAIR RELATION for everything. Any comments form J-boys and western girls being relation with J-boy welcome.