[RadioKid]

His behavior is polite. I'm not sure if he has hot passion hiding behind the politeness (it is often seen in Japan).

I have never been in romantic situation with foreign girl because of the unreliable, unstable communication ability of my own. It is very difficult for Japanese boys to lead foreign girl in romantic mood in non-native language.

Ask him if he has girl friend other than you. Tell him your situation and watch what happens.