''Radical difference between East and West regarding relationships and marriage''

I don't think there's much an ''East'' and a ''West'' thing regarding relationships and marriage.

there's huge differences between countries in the ''West'' and huge differences between countries in the ''East''.

Dutch culture is very different from Italian culture, Italian men behave different from Dutch men in relationships like Whoa (I like Italian culture more).
I think Italian and Korean men have more in common, in terms of flirting, than Italian and Dutch.