Is this stalking?

Anonymous
I once glanced over at this guy (a distant friend) and smiled at him. Ever since, he began this thing of locking eyes with me for a few seconds, but since he wouldn't talk to me even when I msged him, I dropped it. However he still didn't stop, he'd hide behind a door to stare, hide behind a wall to stare at me and once hid behind a cupboard to do the same. He once stood directly behind my seat to the point where I couldn't move my chair.
He then began to watching me from a distance, if I notice this, I get up to walk away, but he'd literally bend his body over and continue watching me as I move around the place. This watching behaviour can go up to 1-2 minutes straight at a time and I feel intimidated and weirded out by it. If I hide behind something to avoid him, he'd lean forward to keep watching me without 'breaking this watching cycle'.

Pls don't say if this was a good looking guy I'd be flattered, this guy is good looking and I even used to like him, but this behaviour isn't flattering at all. I don't wanna report him, I just want him to change and stop this.
Is this stalking?
2 Opinion