Just went and re-read OP and would like to answer the questions it asks - whether or not they are rhetorical.

Q: Am I a stalker?

A: Nothing you wrote in your comment suggests that you are a stalker. Waiting somewhere once in order to get a glimpse of someone who makes you feel safe DOES NOT A STALKER MAKE.

Q: Am I a creep?

A: No, 'creep' is a pejorative label without any substantive content. (Though the Radiohead song is a classic)

Not only should you NOT be calling yourself these things, but you should not be accepting such labels from others either.

#YouAreNotAlone