Be careful with this one- I can see how it is flattering to know that someone kept you in the back of his mind for so long in the same way as it's flattering to be wolf-whistled walking down the street. It may be just as benign-- or it may be the start of another onslaught of stalking. I have to say, when someone swipes your ID to get your address and then starts showing up all the time it definitely sets of warning bells. Chances are if you thought it creepy enough to have to ask, then it is in your best interests to stay away from this guy.

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"We are all in the gutter, but some of us are looking at the stars." --Oscar Wilde