I've certainly heard of such instances. Our dreams often try to guide us to resolve issues that are subliminally effecting us in our present. Usually they do this through almost nonsensical metaphor, but occasionally they can be very blunt with you. I wouldn't count on the detail of the dream being an exact account of how things happened, but it may certainly give you many straightforward clues as to why you might have an adverse reaction to this person in the present. In any case, I would suggest getting it down in writing immediately while the detail is still fresh, and remember, NOTHING in a dream is insignificant, every little detail, (how you felt about what you saw as well as physical things that you saw) really really count. If you decide you want to post it maybe we can unravel it with you
