Mental Breakdown y/n?

Might be having a mental breakdown.
See, my 0 readers, theres this boy that was my friend and after some shit(Shit that wasn't my fault..just wanted to clarify) i do not want to discuss he hates me.
Wants to see me dead.
Get it?
Kay.
He was homeschooled then went to some schools and he changes schools frequently since he has anxiety problems and sometimes goes back to homeschooling.
I shoulda seen this coming.
I've been seeing someone that looks like him at my school.
At first i thought i was going crazy but then...
I passed him on the way to class and he was laughing with a friend and he sees me
says oh shit
and covers his face with his jacket.
I look straight ahead and ignore this.
I can't take it.
The first time i saw him i was just behind him on the way up stairs...
I feel horrible that the reason i thought it was him is because of the way he dressed and the way he shook his head.
Why do i notice these things?
Why do i only notice these things about him?
I sincerely hope i'm going crazy and its really not him.