bromophobe

A person, usually a woman, who has a hatred and/or fear of a man, particularly her significant other, having a close friendship with another man.

James: "Hey, I'm going to hang out with Caleb. I'll be back around 10:00."

Hannah: "Oh my gosh why!?!?! For the 3rd time this week! No way!!! You can't go! I won't allow it!"

James: "Calm down you bromophobe, it's not like I'm going to fuck him. See you later."

Hannah: *screams and sobs with intense anger and upset

bromophobia

dislike or prejudice against two straight men engaging in a close friendship.

Megan suffers from bromophobia, she thinks her boyfriend loves Jack more than her.