If the cultural differences scare you that much, you should marry your friend (from the same socio-economic background) who have been together since primary school

or

your sister (ohh come on, दिल पे मत लो यार).

And yet personality comes into play irrelevant of cultural background.

So if you both like e/o, then go beyond the color/language/dress/food, brother! People are nowadays becoming more and more world citizens.