Told my ex (in a nice way) that I basically want her out of my life for good?

My ex-girlfriend contacted me today. She had called me a few months ago for the same reason (to see how I've been). Now there's a lot of hurt and pain ociated with her and hearing her voice, as while our relationship was short it was filled with heartache and drama intermixed with big feelings for each other. In the end it wasn't meant to be. I was a virgin, she was a bit promiscuous (has slept with most of her male friends) so it wasn't a good match. Well I had contacted her a while after we broke up and she basically ignored me. She calls me the next month and I answer, stunned that she called me as I thought things were done. I text her the next month to say hey and she replies with "Ok" and that's all. Pretty much a slap in the face to me as far as I'm concerned. Well she calls me today just like she did in May and this time I felt extremely nervous. I was sure that she would never call me again and here she is calling me. I now feel like it's time to nip it in the bud and I tell her I don't think she should contact me anymore and that I sincerely wish her well. She's stunned and can't believe what I've said. She said she wasn't expecting it. Then she tells me to have a nice life. I hang up. Was I rude for telling her this? I mean, what happened between me and her left a big emotional wound and whenever I hear her voice it kind of re-opens it I guess and all these bad feelings come back. I feel like the only way to move on is to not ever talk to her again. I mean, she lives 4 hours away and I'm 99 percent sure I'll never see her again so... My mom said she's a fair-weather friend. She only calls and talks to me and is nice to me when she feels like it and it's convenient. This is also evident by the fact that every time she called me it was on the go (in the car, at the store, etc). Let me know what you guys think