talkin while asleep

I've had not one but 2 GF's break up with me because I "cheated on them" in a dream. These dreams were so vivid they had to be true. Recent GF I broke up with before having surgery this past Friday, still good friends, I could tell she was mad at me as she had a dream I was cheating on her and had a kid with another woman.

I asked her about this dream and she describes how my church which has a gym and small private school looked about 9 years ago in complete detail. Flips me out because she says she has never been there before