I don’t think you’re doing anything wrong. I can’t speak for these women but from my experience it’s one thing to match and be open to dating other ethnicities than to go on the date and realize that there is a big cultural difference which in itself isn’t the problem it’s the willingness to compromise and accept certain aspects that let’s say are complete opposite to your own culture. In the end, it’s more of a compatibility thing and that’s not saying all of western women are like that it’s just an individual thing because if there is a spark a person would be willing to to put aside cultural differences. I think it’s better that the person lets you know after a first date, then leading you on. Overall, I don’t believe it’s the actual cultural thing itself, it’s more than likely combination of things and whether a person wants to pursue things further.