The difference between a stalker and a secret admirer is creepiness?

I've had no experience with this, or even have any friends that do. So I've only come at this from a theoretical perspective.

I've always maintained that the only difference between the two is level of creepiness, which is all in the perspective of the person being stalked/admired.

Your thoughts?
The difference between a stalker and a secret admirer is creepiness?
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