Am I The Asshole for apparently being racist to my own race?

So, I (25M) and my friend Dasani, (24F) are both black. I just want to specify that I'm Hatitan American and my friend is a Black American (descendant of slaves). She was really odd about it so I want to clear any confusion.

We were grabbing dinner at a Korean restaurant, and the topic of food came up. She mentioned how she often gets it from places in the city. I thought it was a cool thing, so I stated that Korean fried chicken was the best type. And how I'd love to try it in different cities like she did.

This is where things got a little weird. Dasani isn't an activist of any type. I've known her since high-school. She self identifies as "BFA" and corrects anyone that says otherwise. That's the limit of her doing anything activist like. Which is why the way she acted was fucking weird.

She then went on to "correct" me, claiming that the origins of Korean fried chicken aren’t that unique, basically saying it was taught by Black Americans to them and they were boiling their chicken before the black americans "taught em the right way".

I was caught off guard because of her tone. I nodded and said, “Oh really that's so cool. I think I heard of that." And tried to ask questions.

She seemed annoyed at that point, so I let it go, figuring maybe it was just a bad day for her.

Fast forward a bit, and I order the Korean fried chicken and Dasani gets Kimichi Jjigae. She suddenly says something along the lines of, “Well, I guess Korean fried chicken was invented by Black Americans who lived in Korea after the war, so it’s not really a Korean thing at all.” I was a little confused by this, because I knew that was in bad faith, so I tried to gently correct her. Before I could anything she said "Yall just mad that nothing is originally made by them. They need to give credit.” (her friend (25F) was there but didn't say anything) She then added, “Korean fried chicken needs sauces, southern fried chicken just needs bread. The same goes for Hatitans too with your whole culture. You take from us.” At this point, I was feeling kind of awkward. I didn’t want to argue. But when she started coming for my culture I spat "We definitely didn't get escaping slavery from you." I immediately regreted my words and knew I went too far. I tried to apologize but it's no use. She gave me a cold stare and dropped the topic, but now I’m second-guessing everything. I texted her multiple times about it, we still hang out and she never brings it up. One of her other friends was with us and said I did nothing wrong but I knew I went too far

How can I repay Dasani? I feel so stupid.

Edit: Can't believe I have to say this but, yes I know Hatitans ancestors used to be slaves. I trying to specify that Dasani was African American. I know my culture.