In my opinion than a soul mate is one who share your feelings above that of a "normal Love"
So there is no way you can meet your soul mate, and not get any response, because the major factor "mutual understanding and lover" are not fulfilled
Sometimes we also get a "soulmate" without love is needed,(friendship) but again is the "Mutual understanding" above normal, one of the main criteria, in my opinion.
What you have experienced is a crush, which not have received any response....which is a pain .......but normal.