You didn't mention if Lee seemed inebriated or continued his behavior with anyone else after he left your table.
I wouldn't be "paranoid" over this isolated incident. Beer muscles often deflate once the buzz is over.
Heighten your awareness, yes...but to change your "ways"....no way. Go back and sit at the same table, order a beer and food.....browse your phone..and enjoy! Unless Lee has a barstool with his name on it....you probably won't ever see him again. And if you do...chances are he won't remember you.