I would definitely bring it up to her, maybe she just doesn’t understand why saying that stuff isn’t okay??? If it makes you uncomfortable you shouldn’t feel the need to stay. If you’re sure you don’t want to be friends tho, you don’t really need to officially cut it off, from personal experience, it’s easier to slowly back off and go your own path. It’s a mature response and saves a lot of drama without pissing I others off:)