vent-ish? tw: possible staker stuff

So i'm pretty sure some dude that liked me a couple years ago was taking photos of me. i know that probably sounds hella ironic coming from me due to source actions, but yea. this dude was watching all last year, and passes me in the hallway everyday this year, and today he had quickly brought his phone up and i'm pretty sure he took a photo of me. i'm now a little worried about my safety.