[mercer]

It shouldn't be creepy, I think, but I can see that it is interpreted that way.

I've had a few experiences similar to yours. I'd ask about something I remembered from earlier, and people acted surprised that I remembered. Sometimes the response was negative, and I got the impression that they themselves had forgotten that they told me about this. But other times, especially in a dating context, the response was very positive ('I can't believe you remember!').

As a result of all this, I've made it a personal policy to be very careful about sharing what I remember. When I feel confident that it'll be considered positively, I mention it. When I'm not sure, I act like I don't have the memories that I do.

As an aside, there's some evidence that strong memory in this regard correlates with depression. For me that strikes me as very true: I vividly remember and feel guilt over things only to find out that the other party has entirely forgotten about it.