Should I report my cousin to HR for being a racist?

My cousin and I work in a big accounting firm. One day my new boyfriend came to pick me up for lunch. My cousin was polite but I saw her make a face and say yuck under her breath. Later on that day I asked her why she did that. She said that she had no problem with my jungle fever. She said she would never date a black but she was ok with me as long as I was happy. She said that some people would judge me as white trash but I should do what I want. While she was talking her tone was very judgmental and racist. Then she asked me if his pee-pee was big. I’m so mad, should I try to get her fired. There should be no tolerance for racism. The thing is if I get her fired it may cause family problems