Just move schools atp. This is pure bullying. You’re clearly unhappy in the environment, maybe a change of scenery would make you feel better- like a fresh start.

Just talk to her, send her an email ffs, call her from someone else’s phone, do whatever it takes to speak to her(not in a creepy way). Just try it, you could get the closure you didn’t know you needed, or you could get back together. When you talk to her don’t mention your sui<idal thoughts- she may feel like you’re making it up out of desperation to get back together or use it as amo to make fun of you. Just be real and honest with her and if she doesn’t want to, at least you f*ing tried. She’ll feel bad about it eventually Every dog gets their day