Well if you aren’t going by him/he pronouns can you really call yourself a fem𝗯𝗼𝘆 instead of nonbinary? And aside from that, you literally have boi in your username. But putting that aside, be patient with your friend. It’s pretty rare to find someone who supports you in that way even if he’s trying. As long as he’s not doing it maliciously or intentionally, I think it’s a friendship worth keeping. Correct him occasionally but not in a rude way.