I am the asshole?

My ass isn't going to get reddit, so this is the next best thing. I'm going to tell you about a TRUE story that happened just yesterday. This story revolves around my boyfriend, who, like myself, is an indigenous Mexican. His complexion is brown, and he has an indigenous nose. HOWEVER, THIS IS IMPORTANT TO THE STORY. Now, back to the story. I was at my friend's house yesterday; she lives in my area, and two of our other friends also came in, making it four girls plus me. Melody is the name of the main friend that welcomed us to her home. It's worth noting that Melody is a white, light-skinned Mexican. We were preparing cookies and my two friends were talking about their boyfriends. Now, my friends were talking about their mans, and I was just listening to what they were saying as I was shaping the cookies into little balls. All of a sudden, Melody said, "Dani, you know what I noticed about your boyfriend," and I knew she was going to flame him because my friends didn't think my boyfriend was attractive, and they constantly telling me that, but I would always tell them that he was. So I was expecting her to say something like "I noticed that your boyfriend is ugly" and I would just joke back, but what she actually said absolutely made my jaw drop. Tell me why this girl says, "He looks black" I immediately gave her the stinky ass look and told her exactly what she meant. You'd think she'd apologize, but she just keeps saying, "It's just his nose looks like a black person's nose, are you sure he's not black?" She then began giggling as though it were something funny. My other friends then told her she couldn't possibly be saying that. I called her out and fucking told her she was a real bitch, then I gathered my stuff and went. I couldn't believe she was literally racist and tried texting me about it, saying that I didn't understand it! Melody went too far, according to my other friends who texted me. We ignored her at school today. She was a good friend, but what she said changed my perspective on her. I don't think I'll ever start talking to her.