Share stories of when your sims were being creepy

No specific episodes come to mind, but it happens on a regular base that my Sim's lover show up at venue's or lots apparently just to keep a watchful eye. Usually, they're just suddenly there standing behind my Sim or close by and not really doing anything but observing. I'm not really comfortable with that since it isn't beyond me to make my Sim eye and possibly flirt with others. It's like the game knows this and has decided to police me in this way :#