Breakup not to do’s

Can we make it a thing where we don’t break up right before an exam… :) thanks!

Basically this girl (dated for 1 year and 3 months) her and I seemed perfectly fine, exam week, I get a text to meet her after the exam. Keep in mind, my exam was 2 hours cause it was Adv Functions gr 11, and hers was a 1.15 hour english grade 10 exam, I was in a class higher than my grade level. So I tell her like hey, my exam is 2 hours long, then I’ve gotta take my best friend to the doctors cus her parents wouldn’t (she was ok) so then she said she would meet up w me at a later date to tell me… and I was like… are you mad at me? What is happening right, so then she said she’d meet me before the exam at her locker… WDYM SHE BROKE UP W ME 5 MINUTES BEFORE MY MOST IMPORTANT EXAM… I walked into that class like an embarrassment, my friends (all a year older than me) concerned for me, I try to tell them and break down crying, teacher, worried, unknowing people overhearing, I write that exam like a sniffling buffoon. KMS!