For some reason (maybe through the consumption of too many Hollywood movies) Japanese women think that foreign men are like that!
They’re not afraid of showing their feelings in public or telling their girls flat out how they feel about them. The extreme version of this is known as “gaijin hunter” and some will do everything for the sake of having one of those adorable “half”-kids (half Western, half Japanese) just to toss their foreign guy later on.
Japanese guys are often too shy, scared or whatever and the majority of Western men is only interested in Japanese / Asian women.
As a result it is tough to find a date as a foreign woman here in Japan.
It is by far not impossible and I know quite a few girls who don’t only have a Japanese boyfriend, but are also married to a Japanese man, but it is still the BIG exception!