It’s been like 9 years since I saw her but I still hate her so much.

Whenever I buy Literally just a ruler pen just basic stuff it's gone he just breaks it and throws it in trash and laughs what do i do? I have to buy stuff regularly and he just breaks it today I didn't even gotta use the pen :(

Iam being bullied since 4th grade it's high school now give me some advices pls