I'm frustrated with my boyfriend after he told me crying was unprofessional
Why does he think crying is unprofessional?
I'm not sure why he thinks that, he doesn't even know why I'm crying.
It's understandable that you'd get mad at him for that. It's not nice for him to tell you that crying is wrong.
I'll try to stop crying but I'm not sure that I can.
You should tell your boyfriend how you feel and tell him that he needs to be more compassionate towards you. It's fine to cry when something upsets you, we all deal with our emotions in different ways.