I can see how you are both offended. I don't know her intent, but if you don't speak up then you are giving her silent consent to continue it - because she really might not notice it. Or maybe she's tired of you for whatever reason. Maybe she is awkward herself and trying to help you by pointing things out. Who knows. You haven't asked or spoken up.

I can easily see how she was offended as well. You worded it poorly. She was correct in saying that it was the impact and not what you say your intent was. You could say the exact same thing to her about the stuff she has said to you - what she has intended by her comments is irrelevant because it upsets you.

That said, she's being open with you about her opinions.