It's tough issue to tie a knot with a foreigner. There are lots of cultural, mental points you and your partner may differ in e.g. different perspective on the way children should be raised or religion matter. I have instances of successful interracial marriages among my friends but this is more an exception to the rules.
I once met a russian girl in St.Pete along business trip and got head over heels in love with her. She was dancing in a local strip bar Zavist. I generally adore slavonic ppl. but this gentle beauty drove me mad. We dated for coupla years as I was constantly riding back and forth but I finally realise that we couldn't create a happy union as a family, we kinda had different values and looks on that, sadly...