Because of the Japanese educational tradition,
Japanese girls are too meek.
The communication way of Japanese is indirect and subtle because direct rejection is rude in Japan.
On the other hand, in most cases, foreign people cannot catch/understand such subtle Japanese people's expressions.
Thus, things could be pretty complicated for Japanese girls.
it causes sometimes the reaction of Japanese-girls to become different when the guy is a foreigner.
The reasons, for example…
・ "Reject others" is rude in basic Japanese thoughts.
・"Read the air" is a big matter as smart Japanese.
・"Strong self-assertion" (especially as a woman)
is not preferable in Japan.
・Japanese girls are confused because the approaching way of foreign guys is different from Japanese guys, so, they are confused and lose distinguish between what is rude or what is normal or something.
・They tend to think
"If my Japanese standard is not common for foreign guys, maybe I should adjust to his way?"
Even though it is the situation he should adjust to the Japanese way, Japanese girls tend to give way to foreigners.
・Generally the approaching way of Japanese guys is not so aggressive or passionate like foreign guys, so, Japanese girls are too much surprised and confused about foreign guys. Then, they tend to lose calm judgment they usually have.
・Many of Japanese girls don't know what dating in other countries is like.So, they tend to swallow the way of foreign guys even if his behavior deserves rejection in his country.
it should be not happy for you that she accepts you only becauseof losing calm judgment or confusing or compromise. Also, you should be not happy if you make her just confused.
I really hope you understand this complicated matter and understand Japanese girls rightly…