Why do I relate to East Asian people and not others?

[Nicole]

Weird question but...I live in Australia, my year level is about 50% East Asian/Chinese international students, for some reason the white people and Asian people do not mix much. I am the only white person in my friendship group and I have no friends that are not asian.

I am wondering:

-why is it that school classes and friends are often split down the middle racially and often not racially mixed, it's not like anyone is racist or doesn't like each other?

-and why is it that both my parents are of relatively anglo descent and I have not been raised in an asian culture but I get along with asian people so well, and can't seem to make new friends with anyone who is not?