I think I'm being verbally abusive to my boyfriend.
Why do you think you're abusive?
I yell at him a lot.
You shouldn't abuse anyone, especially not your partner. Abusing someone, even if it's not physical, will cause significant damage to their mental and physical well being. You need to immediately stop doing it and seek help for your behavior.
I know I'm abusing him but I don't care about seeking help. He keeps saying he's my boyfriend so he should take it like a man and stay quiet.
He might be your boyfriend but eventually he might get tired of being abused. You should stop abusing him before he leaves you.