My advice is that it is very significant. such an accurate premonition and kismet can only mean karma. However....
Just because you had this dream, and life has reproduced it.. doesn't mean that it will come to pass in totality. It sounds like there could be a big test here, your emotions versus your sense of obligation and morality, only you can decide.
The acid test will be the soulmate aspect. My advice is keep it platonic and be strong and do not collapse yourself into a commitment which will affect so many lives. By all means encourage acquaintanceship with this man and see if he accepts platonism. if he does he truly could be a soulmate. If not, he could be a catalyst to separate you from a situation you seem to have outgrown.
The biggest test will be whether you can override your emotions which is never easy for a woman. Just make sure you are not letting your emotional illusion be your driver.