[Nyororin]

My story is so different from yours that I doubt I can be of much help...
When my husband and I decided to marry, we went to announce our plans to his parents - fully prepared to lower our heads and beg for their blessings.
They shocked us by responding to our "We have something important we`d like to discuss" with a flippant "Oh, we figured that was what you meant."
There was never any surprise or opposition, and my husband`s mother was quite pleased that he`d found someone on his own. She`d expected to have to go the arranged marriage route because he is so... strange. :P

There have never been any problems - unless you count that mother-in-law didn`t want to let her friends know we were married until we had a ceremony in order to maintain family image. (Which has nothing to do with nationality/race)

Major differences in my case though - I speak fluent Japanese, and we chose to live in Japan not elsewhere.