This is not like buying a japanese car or germany car..

Dude, you are in relationship...so my questions is ...You have a doubt to spend a life with her.

Above all she is a woman. Being a man, if you know your woman very well..that is the happiest relationship..doesn't matter..culture, race.country..

I, myself, is a product of foriegn (as you said)  mom with desi dad. My parents, they have been happily married for 30 years.

good luck