I really need help

BACKSTORY:

pt.1 okay so at my highschool there’s this kid i used to be best friends with that was actually in love with me but i didn’t like him that way. once i turned him down he stopped talking to me but we have a class together and he would just stare at me the whole time. Now one of my bestest closest friends soon became my boyfriend 2 months later. (I had been waiting to date this boy for 3 years) no my boyfriend and that kid we’re friends and that kid no gives me and my boyfriend the silent treatment, but still stares at me. In the one class we have together we got new seats in and he sits directly behind me (we are back to back)

pt2. so i have these dreams that come true, idk when they happen but i know that they happen. i have normal dreams that are just dreams that don’t come true. but the ones that come true happen so often that i can tell which ones come true and which ones are just dreams. And sometimes they will happen if i’m spacing off and i can tell that they are gonna happen that way too.

MAIN ISSUE: okay well i had a (normal) dream about the kid at my school killing me bc he was upset i got with my current boyfriend and not him. now i’ve heard you dont die in dreams like you may get to the point of where your about to but you don’t actually die. now in my dream he actually killed me. and as i lay there for 3 seconds dead, i then wake up and it’s currently 2:00 in the morning. now as soon as i wake up a bunch of those dreams that happen start flooding into my brain and vision and it’s just a bunch of different ways he’s gonna kill me at school. most of them happen in that class we have together and nobody can do anything about it because it happens fast because he sits so close to me that our backs are literally touching. I’m now so scared to even go to school. like seeing him is gonna give me a heart attack idk if i can do it. let alone go through 4th period.

Would it be bad if i went and talked to my counselor about my situation and asked if i can sit in her office and do my work for my 4th period? every monday we do work on computes and my teacher doesn’t need to be there for it. but i frfr can’t go back to sleep. i’m scared to death of going to school because i don’t feel safe around him.