My stalker and what I should do?

Msssgirlll
there’s this guy let’s call him Sam and he’s like kinda of weird and stuff well I was friends with him freshman year because I felt bad for him I thought he was just really lonely and quiet and didn’t have many friends. Well that was pretty much it freshman year well we come back sophomore year and I notice he started staring at me and at first I wasn’t bothered by it I was confused, but I didn’t think much of it well then it became more aggressive stares y'all I shit you not he would stare at me for 5 minutes straight and I would start to get a little uncomfortable and I could feel him staring so I would look at him and he would immediately look away now I don’t know if any of y’all have watched 13 reasons why but he reminds me of season one Tyler downs well then his tatics became more then staring he would follow me in the hallways change his route so they could be mine so then I would change my route again he would ask the teacher to move anywhere I sat meanwhile the excessive staring kept happening it was so bad I asked to move my seat and I felt like eyes were on me constantly well we had this math class and his seat was beside me well I would move his chair far down from me to be away from him and then he would move his chair right back beside me inches away.. it got so bad my friends had to talk to him, I had to get moved away from him in class he yelled at me one time for not knowing a question and no one besides my friends would believe because like I said he was a weird and quiet kid and made everyone believe he was this innocent person but he’s sneaky and only does it when he know I have to watch he would stand in front of me so I couldn’t get around if I asked a teacher for help he would immediately watch , but it scared me and crept me out so much there was this one time he was in front of me in the car line and he was sitting in the back and the whole time we were behind him he stared at me I have wayyy more but yeah let me know if y’all want a part 2
My stalker and what I should do?
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