My bestie said some something pretty rude the other day

So...we where playing Sunset Island on Royale High and I said “ Oh there’s a nonbinary person here!” I was just saying it cuz I’ve never seen a non-binary person on roblox in my server I believe and she said “I honestly don’t get non-binary people.” And I just was in shock. ( btw we where on a call do the person didn’t hear ) I have never been so angry with my friend in a while.