The title of this thread caught my eye because I sometimes have trouble finding my sons when it's work time here at the house...
Well, pika la san...I don't know what to say, really, because of the lack of information that one should know to be able to make any educated guess.
However, if the cellphone number you had been given by her is no longer in service and she had not forwarded you any new number, I would tend (and notice this '
tend) to think that she has moved on--so to speak.
It appears that you are 17 years old, and I don't know how old she is, so another guess is that the relationship had not been a much of solid reality as either one of you would have or could have concieved of it as having been.
Perhaps, as a suggestion, don't worry over it too much, let things flow (though please do send some more snail mail from time to time [no pressure either]) and in the meantime, day dream about your next friendship with one of the so many cute Japanese girls over here, all over the place...
I wish you the best of luck !!!