I just had that happen to me last year...he said he loved me and then retracted it and said, well, I guess I was wrong. I don't understand hwo ANYONE can possibly think to say those words without really knowing!
That being said, my best friend just told a man she has met once, ONCE, that she loves him. He wasn't even all that freindly to her when they met. He's an old friend of mine. And I am sorry to say that I think her problem is that she really just doesn't know what REAL love for another person, as a significant other, is. She's does it all the time...she meets a guy who shows her some interest and suddently, blamo...she says she loves him. I call her a serial monogamist now...someone who goes from one person to the next, telling them she loves them, but without realizing that she really doesn't love them, just thinks that she might.