Is it normal for a guy to feel inferior to you??

My bf has zero self confidence and I know he feels inferior to me since he has dyslexia and is not really good with words, while I on the other hand speak multiple languages, am really good at describing and expressing my thoughts as well as having a broad vocabulary to do so with.

My boyfriend gets really angry whenever he can't express to me what he's thinking and always says stuff like "I'm too stupid" "you're much better than me, I'm worthless" etc. I always tell him he's wrong and that it's okay if he needs time to find the right words and to not stress about it, but he gets really mad and throws stuff and gets really aggressive if he feels he's "dumber than me".. These are all his words btw, I would never think of myself as superior to him, I just think he never got the chance to express himself as a kid and never got the help he needed in school, but he still acts as if I am the one saying all those things, and it's heartbreaking honestly.

How can I handle this?? I try my best to help him and he's gotten better at expressing himself but it's not really ideal to have your partner feed themselves with thoughts that they are inferior and that you think of them as such, so I really don't know how to act 😔 anyone recognize this???